131224975 has 24 divisors (see below), whose sum is σ = 186718208. Its totient is φ = 89618400.

The previous prime is 131224931. The next prime is 131224993. The reversal of 131224975 is 579422131.

It is a happy number.

It is not a de Polignac number, because 131224975 - 2⁹ = 131224463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131224975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46042 + ... + 48808.

Almost surely, 2^131224975 is an apocalyptic number.

131224975 is a deficient number, since it is larger than the sum of its proper divisors (55493233).

131224975 is a wasteful number, since it uses less digits than its factorization.

131224975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055 (or 3050 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 131224975 is about 11455.3470047834. The cubic root of 131224975 is about 508.1658775369.

The spelling of 131224975 in words is "one hundred thirty-one million, two hundred twenty-four thousand, nine hundred seventy-five".