2152320957 has 32 divisors (see below), whose sum is σ = 3214598400. Its totient is φ = 1423247616.

The previous prime is 2152320923. The next prime is 2152320991. The reversal of 2152320957 is 7590232512.

2152320957 is a `hidden beast` number, since 21 + 523 + 20 + 95 + 7 = 666.

2152320957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2152320923) and next prime (2152320991).

It is not a de Polignac number, because 2152320957 - 2⁸ = 2152320701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152320997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2257993 + ... + 2258945.

It is an arithmetic number, because the mean of its divisors is an integer number (100456200).

Almost surely, 2^2152320957 is an apocalyptic number.

2152320957 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2152320957 is a deficient number, since it is larger than the sum of its proper divisors (1062277443).

2152320957 is a wasteful number, since it uses less digits than its factorization.

2152320957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554 (or 1548 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 2152320957 is about 46393.1132497055. The cubic root of 2152320957 is about 1291.1271435844.

The spelling of 2152320957 in words is "two billion, one hundred fifty-two million, three hundred twenty thousand, nine hundred fifty-seven".