156930128 has 20 divisors (see below), whose sum is σ = 321938100. Its totient is φ = 73849344.

The previous prime is 156930121. The next prime is 156930143. The reversal of 156930128 is 821039651.

It can be written as a sum of positive squares in 2 ways, for example, as 77933584 + 78996544 = 8828^2 + 8888^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156930121) 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, 288203 + ... + 288746.

It is an arithmetic number, because the mean of its divisors is an integer number (16096905).

Almost surely, 2^156930128 is an apocalyptic number.

It is an amenable number.

156930128 is an abundant number, since it is smaller than the sum of its proper divisors (165007972).

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

156930128 is a wasteful number, since it uses less digits than its factorization.

156930128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576974 (or 576968 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 156930128 is about 12527.1755795151. The cubic root of 156930128 is about 539.3890300727.

Adding to 156930128 its reverse (821039651), we get a palindrome (977969779).

The spelling of 156930128 in words is "one hundred fifty-six million, nine hundred thirty thousand, one hundred twenty-eight".