156923090 has 48 divisors (see below), whose sum is σ = 315769752. Its totient is φ = 55945728.

The previous prime is 156923069. The next prime is 156923099. The reversal of 156923090 is 90329651.

156923090 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 138321121 + 18601969 = 11761^2 + 4313^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 156923090.

It is not an unprimeable number, because it can be changed into a prime (156923099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60092 + ... + 62648.

Almost surely, 2^156923090 is an apocalyptic number.

156923090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156923090 is an abundant number, since it is smaller than the sum of its proper divisors (158846662).

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

156923090 is a wasteful number, since it uses less digits than its factorization.

156923090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619 (or 2600 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 156923090 is about 12526.8946670753. The cubic root of 156923090 is about 539.3809664484.

The spelling of 156923090 in words is "one hundred fifty-six million, nine hundred twenty-three thousand, ninety".