154940545 has 8 divisors (see below), whose sum is σ = 188018280. Its totient is φ = 122559360.

The previous prime is 154940521. The next prime is 154940551. The reversal of 154940545 is 545049451.

It can be written as a sum of positive squares in 4 ways, for example, as 40043584 + 114896961 = 6328^2 + 10719^2 .

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

It is not a de Polignac number, because 154940545 - 2²¹ = 152843393 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173646 + ... + 174535.

It is an arithmetic number, because the mean of its divisors is an integer number (23502285).

Almost surely, 2^154940545 is an apocalyptic number.

It is an amenable number.

154940545 is a deficient number, since it is larger than the sum of its proper divisors (33077735).

154940545 is an equidigital number, since it uses as much as digits as its factorization.

154940545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348275.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 154940545 is about 12447.5115987092. The cubic root of 154940545 is about 537.0998442264.

Adding to 154940545 its reverse (545049451), we get a palindrome (699989996).

The spelling of 154940545 in words is "one hundred fifty-four million, nine hundred forty thousand, five hundred forty-five".