131149988 has 12 divisors (see below), whose sum is σ = 229797120. Its totient is φ = 65493672.

The previous prime is 131149987. The next prime is 131150017. The reversal of 131149988 is 889941131.

It is not an unprimeable number, because it can be changed into a prime (131149981) 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, 16628 + ... + 23211.

It is an arithmetic number, because the mean of its divisors is an integer number (19149760).

Almost surely, 2^131149988 is an apocalyptic number.

It is an amenable number.

131149988 is a deficient number, since it is larger than the sum of its proper divisors (98647132).

131149988 is a wasteful number, since it uses less digits than its factorization.

131149988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40666 (or 40664 counting only the distinct ones).

The product of its digits is 62208, while the sum is 44.

The square root of 131149988 is about 11452.0735240392. The cubic root of 131149988 is about 508.0690639150.

The spelling of 131149988 in words is "one hundred thirty-one million, one hundred forty-nine thousand, nine hundred eighty-eight".