131292488 has 8 divisors (see below), whose sum is σ = 246173430. Its totient is φ = 65646240.

The previous prime is 131292481. The next prime is 131292509. The reversal of 131292488 is 884292131.

It can be written as a sum of positive squares in only one way, i.e., 131285764 + 6724 = 11458^2 + 82^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (131292481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8205773 + ... + 8205788.

Almost surely, 2^131292488 is an apocalyptic number.

It is an amenable number.

131292488 is a deficient number, since it is larger than the sum of its proper divisors (114880942).

131292488 is a wasteful number, since it uses less digits than its factorization.

131292488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16411567 (or 16411563 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 131292488 is about 11458.2934156880. The cubic root of 131292488 is about 508.2530101400.

The spelling of 131292488 in words is "one hundred thirty-one million, two hundred ninety-two thousand, four hundred eighty-eight".