156457128 has 32 divisors (see below), whose sum is σ = 391829760. Its totient is φ = 52060800.

The previous prime is 156457121. The next prime is 156457141. The reversal of 156457128 is 821754651.

It is not an unprimeable number, because it can be changed into a prime (156457121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9001 + ... + 19847.

It is an arithmetic number, because the mean of its divisors is an integer number (12244680).

Almost surely, 2^156457128 is an apocalyptic number.

It is an amenable number.

156457128 is an abundant number, since it is smaller than the sum of its proper divisors (235372632).

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

156457128 is a wasteful number, since it uses less digits than its factorization.

156457128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11457 (or 11453 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The square root of 156457128 is about 12508.2823760899. The cubic root of 156457128 is about 538.8465640869.

The spelling of 156457128 in words is "one hundred fifty-six million, four hundred fifty-seven thousand, one hundred twenty-eight".