131987163 has 48 divisors (see below), whose sum is σ = 223354880. Its totient is φ = 67858560.

The previous prime is 131987161. The next prime is 131987171. The reversal of 131987163 is 361789131.

It is not a de Polignac number, because 131987163 - 2¹ = 131987161 is a prime.

It is a super-2 number, since 2×131987163² = 34841222393577138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131987161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 322503 + ... + 322911.

Almost surely, 2^131987163 is an apocalyptic number.

131987163 is a deficient number, since it is larger than the sum of its proper divisors (91367717).

131987163 is a wasteful number, since it uses less digits than its factorization.

131987163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 557 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 131987163 is about 11488.5666207756. The cubic root of 131987163 is about 509.1478310203.

The spelling of 131987163 in words is "one hundred thirty-one million, nine hundred eighty-seven thousand, one hundred sixty-three".