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154112045 = 5109728097
BaseRepresentation
bin10010010111110…
…01000000101101
3101201222200222112
421023321000231
5303423041140
623143053405
73550634153
oct1113710055
9351880875
10154112045
1179aa072a
1243741265
1325c0b779
14166793d3
15d7e2c65
hex92f902d

154112045 has 8 divisors (see below), whose sum is σ = 185109624. Its totient is φ = 123172864.

The previous prime is 154112039. The next prime is 154112051. The reversal of 154112045 is 540211451.

It is an interprime number because it is at equal distance from previous prime (154112039) and next prime (154112051).

It can be written as a sum of positive squares in 4 ways, for example, as 3976036 + 150136009 = 1994^2 + 12253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 154112045 - 26 = 154111981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154112045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8564 + ... + 19533.

It is an arithmetic number, because the mean of its divisors is an integer number (23138703).

Almost surely, 2154112045 is an apocalyptic number.

It is an amenable number.

154112045 is a deficient number, since it is larger than the sum of its proper divisors (30997579).

154112045 is a wasteful number, since it uses less digits than its factorization.

154112045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29199.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 154112045 is about 12414.1872468559. The cubic root of 154112045 is about 536.1408038138.

Adding to 154112045 its reverse (540211451), we get a palindrome (694323496).

The spelling of 154112045 in words is "one hundred fifty-four million, one hundred twelve thousand, forty-five".

Divisors: 1 5 1097 5485 28097 140485 30822409 154112045