131024987 has 8 divisors (see below), whose sum is σ = 136131840. Its totient is φ = 125957440.

The previous prime is 131024953. The next prime is 131025061. The reversal of 131024987 is 789420131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131024987 - 2⁶ = 131024923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131024917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2939 + ... + 16452.

It is an arithmetic number, because the mean of its divisors is an integer number (17016480).

Almost surely, 2^131024987 is an apocalyptic number.

131024987 is a deficient number, since it is larger than the sum of its proper divisors (5106853).

131024987 is a wasteful number, since it uses less digits than its factorization.

131024987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19653.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 131024987 is about 11446.6146523765. The cubic root of 131024987 is about 507.9075965500.

The spelling of 131024987 in words is "one hundred thirty-one million, twenty-four thousand, nine hundred eighty-seven".