156697152 has 28 divisors (see below), whose sum is σ = 414595056. Its totient is φ = 52232320.

The previous prime is 156697141. The next prime is 156697159. The reversal of 156697152 is 251796651.

It is a super-2 number, since 2×156697152² = 49107994889822208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156697159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407874 + ... + 408257.

Almost surely, 2^156697152 is an apocalyptic number.

156697152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

156697152 is an abundant number, since it is smaller than the sum of its proper divisors (257897904).

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

156697152 is an equidigital number, since it uses as much as digits as its factorization.

156697152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816146 (or 816136 counting only the distinct ones).

The product of its digits is 113400, while the sum is 42.

The square root of 156697152 is about 12517.8733018033. The cubic root of 156697152 is about 539.1219750501.

The spelling of 156697152 in words is "one hundred fifty-six million, six hundred ninety-seven thousand, one hundred fifty-two".