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145602061 = 1113236551
BaseRepresentation
bin10001010110110…
…11011000001101
3101010222100110221
420223123120031
5244233231221
622240431341
73415411543
oct1053333015
9333870427
10145602061
1175208a90
1240918551
132421c187
14154a1d93
15cbb1541
hex8adb60d

145602061 has 4 divisors (see below), whose sum is σ = 158838624. Its totient is φ = 132365500.

The previous prime is 145602053. The next prime is 145602089. The reversal of 145602061 is 160206541.

145602061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145602061 - 23 = 145602053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145602761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6618265 + ... + 6618286.

It is an arithmetic number, because the mean of its divisors is an integer number (39709656).

Almost surely, 2145602061 is an apocalyptic number.

145602061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145602061 is a deficient number, since it is larger than the sum of its proper divisors (13236563).

145602061 is a wasteful number, since it uses less digits than its factorization.

145602061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13236562.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 145602061 is about 12066.5679047524. The cubic root of 145602061 is about 526.0849051162.

It can be divided in two parts, 145 and 602061, that added together give a palindrome (602206).

The spelling of 145602061 in words is "one hundred forty-five million, six hundred two thousand, sixty-one".

Divisors: 1 11 13236551 145602061