131246487 has 36 divisors (see below), whose sum is σ = 205720424. Its totient is φ = 83611440.

The previous prime is 131246483. The next prime is 131246543. The reversal of 131246487 is 784642131.

131246487 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 4 + 648 + 7 = 666.

It is not a de Polignac number, because 131246487 - 2² = 131246483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131246483) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 128037 + ... + 129057.

Almost surely, 2^131246487 is an apocalyptic number.

131246487 is a deficient number, since it is larger than the sum of its proper divisors (74473937).

131246487 is an equidigital number, since it uses as much as digits as its factorization.

131246487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1047 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 131246487 is about 11456.2859164740. The cubic root of 131246487 is about 508.1936442712.

The spelling of 131246487 in words is "one hundred thirty-one million, two hundred forty-six thousand, four hundred eighty-seven".