131332224987 has 16 divisors (see below), whose sum is σ = 194831726880. Its totient is φ = 87435356256.

The previous prime is 131332224917. The next prime is 131332225001. The reversal of 131332224987 is 789422233131.

131332224987 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 322 + 249 + 87 = 666.

It is not a de Polignac number, because 131332224987 - 2¹⁵ = 131332192219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131332224917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3298188 + ... + 3337769.

It is an arithmetic number, because the mean of its divisors is an integer number (12176982930).

Almost surely, 2^131332224987 is an apocalyptic number.

131332224987 is a deficient number, since it is larger than the sum of its proper divisors (63499501893).

131332224987 is an equidigital number, since it uses as much as digits as its factorization.

131332224987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6636699 (or 6636693 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 131332224987 in words is "one hundred thirty-one billion, three hundred thirty-two million, two hundred twenty-four thousand, nine hundred eighty-seven".