156965920 has 24 divisors (see below), whose sum is σ = 370832364. Its totient is φ = 62786304.

The previous prime is 156965911. The next prime is 156965933. The reversal of 156965920 is 29569651.

156965920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 146023056 + 10942864 = 12084^2 + 3308^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 490359 + ... + 490678.

Almost surely, 2^156965920 is an apocalyptic number.

156965920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156965920 is an abundant number, since it is smaller than the sum of its proper divisors (213866444).

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

156965920 is an equidigital number, since it uses as much as digits as its factorization.

156965920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981052 (or 981044 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 156965920 is about 12528.6040722820. The cubic root of 156965920 is about 539.4300341910.

The spelling of 156965920 in words is "one hundred fifty-six million, nine hundred sixty-five thousand, nine hundred twenty".