131440996 has 12 divisors (see below), whose sum is σ = 232299900. Its totient is φ = 65069600.

The previous prime is 131440949. The next prime is 131440997. The reversal of 131440996 is 699044131.

It can be written as a sum of positive squares in 2 ways, for example, as 81540900 + 49900096 = 9030^2 + 7064^2 .

It is not an unprimeable number, because it can be changed into a prime (131440997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162271 + ... + 163078.

It is an arithmetic number, because the mean of its divisors is an integer number (19358325).

Almost surely, 2^131440996 is an apocalyptic number.

It is an amenable number.

131440996 is a deficient number, since it is larger than the sum of its proper divisors (100858904).

131440996 is a wasteful number, since it uses less digits than its factorization.

131440996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325454 (or 325452 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 131440996 is about 11464.7719558655. The cubic root of 131440996 is about 508.4445702160. Note that the first 3 decimals are identical.

The spelling of 131440996 in words is "one hundred thirty-one million, four hundred forty thousand, nine hundred ninety-six".