2131537912 has 32 divisors (see below), whose sum is σ = 4569124320. Its totient is φ = 913207680.

The previous prime is 2131537909. The next prime is 2131537913. The reversal of 2131537912 is 2197351312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131537913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254658 + ... + 262894.

It is an arithmetic number, because the mean of its divisors is an integer number (142785135).

Almost surely, 2^2131537912 is an apocalyptic number.

It is an amenable number.

2131537912 is an abundant number, since it is smaller than the sum of its proper divisors (2437586408).

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

2131537912 is a wasteful number, since it uses less digits than its factorization.

2131537912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12871 (or 12867 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 2131537912 is about 46168.5814380299. The cubic root of 2131537912 is about 1286.9579405656.

The spelling of 2131537912 in words is "two billion, one hundred thirty-one million, five hundred thirty-seven thousand, nine hundred twelve".