2155931332 has 24 divisors (see below), whose sum is σ = 3896759552. Its totient is φ = 1042610400.

The previous prime is 2155931329. The next prime is 2155931353. The reversal of 2155931332 is 2331395512.

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, 290338 + ... + 297670.

Almost surely, 2^2155931332 is an apocalyptic number.

It is an amenable number.

2155931332 is a deficient number, since it is larger than the sum of its proper divisors (1740828220).

2155931332 is a wasteful number, since it uses less digits than its factorization.

2155931332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9739 (or 9737 counting only the distinct ones).

The product of its digits is 24300, while the sum is 34.

The square root of 2155931332 is about 46432.0076240518. The cubic root of 2155931332 is about 1291.8486668848.

The spelling of 2155931332 in words is "two billion, one hundred fifty-five million, nine hundred thirty-one thousand, three hundred thirty-two".