2157327156 has 24 divisors (see below), whose sum is σ = 5073402880. Its totient is φ = 713446272.

The previous prime is 2157327091. The next prime is 2157327163. The reversal of 2157327156 is 6517237512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706261 + ... + 709308.

Almost surely, 2^2157327156 is an apocalyptic number.

It is an amenable number.

2157327156 is an abundant number, since it is smaller than the sum of its proper divisors (2916075724).

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

2157327156 is a wasteful number, since it uses less digits than its factorization.

2157327156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415703 (or 1415701 counting only the distinct ones).

The product of its digits is 88200, while the sum is 39.

The square root of 2157327156 is about 46447.0360303001. The cubic root of 2157327156 is about 1292.1274024730.

The spelling of 2157327156 in words is "two billion, one hundred fifty-seven million, three hundred twenty-seven thousand, one hundred fifty-six".