131129975 has 12 divisors (see below), whose sum is σ = 163505160. Its totient is φ = 104320800.

The previous prime is 131129951. The next prime is 131129981. The reversal of 131129975 is 579921131.

It is not a de Polignac number, because 131129975 - 2¹⁸ = 130867831 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9965 + ... + 19014.

It is an arithmetic number, because the mean of its divisors is an integer number (13625430).

Almost surely, 2^131129975 is an apocalyptic number.

131129975 is a deficient number, since it is larger than the sum of its proper divisors (32375185).

131129975 is a wasteful number, since it uses less digits than its factorization.

131129975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29170 (or 29165 counting only the distinct ones).

The product of its digits is 17010, while the sum is 38.

The square root of 131129975 is about 11451.1997188068. The cubic root of 131129975 is about 508.0432194510.

The spelling of 131129975 in words is "one hundred thirty-one million, one hundred twenty-nine thousand, nine hundred seventy-five".