155971328 has 36 divisors (see below), whose sum is σ = 329656320. Its totient is φ = 73396224.

The previous prime is 155971313. The next prime is 155971331. The reversal of 155971328 is 823179551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13568 + ... + 22271.

It is an arithmetic number, because the mean of its divisors is an integer number (9157120).

Almost surely, 2^155971328 is an apocalyptic number.

It is an amenable number.

155971328 is an abundant number, since it is smaller than the sum of its proper divisors (173684992).

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

155971328 is an equidigital number, since it uses as much as digits as its factorization.

155971328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35872 (or 35858 counting only the distinct ones).

The product of its digits is 75600, while the sum is 41.

The square root of 155971328 is about 12488.8481454456. The cubic root of 155971328 is about 538.2882789589.

The spelling of 155971328 in words is "one hundred fifty-five million, nine hundred seventy-one thousand, three hundred twenty-eight".