156401252 has 12 divisors (see below), whose sum is σ = 312802560. Its totient is φ = 67029096.

The previous prime is 156401243. The next prime is 156401261. The reversal of 156401252 is 252104651.

156401252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (156401243) and next prime (156401261).

156401252 is an admirable number.

It is a super-2 number, since 2×156401252² = 48922703254335008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2792852 + ... + 2792907.

It is an arithmetic number, because the mean of its divisors is an integer number (26066880).

Almost surely, 2^156401252 is an apocalyptic number.

It is an amenable number.

156401252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

156401252 is a wasteful number, since it uses less digits than its factorization.

156401252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5585770 (or 5585768 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 156401252 is about 12506.0486165695. The cubic root of 156401252 is about 538.7824098231.

The spelling of 156401252 in words is "one hundred fifty-six million, four hundred one thousand, two hundred fifty-two".