131662880 has 24 divisors (see below), whose sum is σ = 311053932. Its totient is φ = 52665088.

The previous prime is 131662829. The next prime is 131662889. The reversal of 131662880 is 88266131.

It can be written as a sum of positive squares in 2 ways, for example, as 128232976 + 3429904 = 11324^2 + 1852^2 .

It is a super-2 number, since 2×131662880² = 34670227939788800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131662880.

It is not an unprimeable number, because it can be changed into a prime (131662889) 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, 411287 + ... + 411606.

Almost surely, 2^131662880 is an apocalyptic number.

131662880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131662880 is an abundant number, since it is smaller than the sum of its proper divisors (179391052).

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

131662880 is an equidigital number, since it uses as much as digits as its factorization.

131662880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822908 (or 822900 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 131662880 is about 11474.4446488708. Note that the first 3 decimals coincide. The cubic root of 131662880 is about 508.7305091467.

The spelling of 131662880 in words is "one hundred thirty-one million, six hundred sixty-two thousand, eight hundred eighty".