2131086492 has 36 divisors (see below), whose sum is σ = 5388750640. Its totient is φ = 710119872.

The previous prime is 2131086457. The next prime is 2131086539. The reversal of 2131086492 is 2946801312.

2131086492 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 0 + 8 + 649 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119808 + ... + 136440.

Almost surely, 2^2131086492 is an apocalyptic number.

It is an amenable number.

2131086492 is an abundant number, since it is smaller than the sum of its proper divisors (3257664148).

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

2131086492 is a wasteful number, since it uses less digits than its factorization.

2131086492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20202 (or 20197 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2131086492 is about 46163.6923566562. The cubic root of 2131086492 is about 1286.8670829166.

The spelling of 2131086492 in words is "two billion, one hundred thirty-one million, eighty-six thousand, four hundred ninety-two".