156413520 has 60 divisors (see below), whose sum is σ = 525291156. Its totient is φ = 41710080.

The previous prime is 156413471. The next prime is 156413527. The reversal of 156413520 is 25314651.

156413520 is a `hidden beast` number, since 15 + 641 + 3 + 5 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 59351616 + 97061904 = 7704^2 + 9852^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156413527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107901 + ... + 109340.

Almost surely, 2^156413520 is an apocalyptic number.

156413520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156413520 is an abundant number, since it is smaller than the sum of its proper divisors (368877636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156413520 is a wasteful number, since it uses less digits than its factorization.

156413520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217260 (or 217251 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 156413520 is about 12506.5390896123. The cubic root of 156413520 is about 538.7964966877.

The spelling of 156413520 in words is "one hundred fifty-six million, four hundred thirteen thousand, five hundred twenty".