156923136 has 144 divisors (see below), whose sum is σ = 471918720. Its totient is φ = 51425280.

The previous prime is 156923101. The next prime is 156923149. The reversal of 156923136 is 631329651.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×156923136² = 49249741224148992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 156923136.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 504421 + ... + 504731.

Almost surely, 2^156923136 is an apocalyptic number.

156923136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156923136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235959360).

156923136 is an abundant number, since it is smaller than the sum of its proper divisors (314995584).

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

156923136 is an equidigital number, since it uses as much as digits as its factorization.

156923136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 389 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 156923136 is about 12526.8965031248. The cubic root of 156923136 is about 539.3810191527.

The spelling of 156923136 in words is "one hundred fifty-six million, nine hundred twenty-three thousand, one hundred thirty-six".