131301988 has 24 divisors (see below), whose sum is σ = 241678080. Its totient is φ = 62331360.

The previous prime is 131301979. The next prime is 131301997. The reversal of 131301988 is 889103131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (131301979) and next prime (131301997).

It is a super-5 number, since 5×131301988⁵ (a number of 42 digits) contains 55555 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3418 + ... + 16561.

It is an arithmetic number, because the mean of its divisors is an integer number (10069920).

Almost surely, 2^131301988 is an apocalyptic number.

It is an amenable number.

131301988 is a deficient number, since it is larger than the sum of its proper divisors (110376092).

131301988 is a wasteful number, since it uses less digits than its factorization.

131301988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20067 (or 20065 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 131301988 is about 11458.7079550881. The cubic root of 131301988 is about 508.2652684883.

The spelling of 131301988 in words is "one hundred thirty-one million, three hundred one thousand, nine hundred eighty-eight".