131125131 has 12 divisors (see below), whose sum is σ = 200544552. Its totient is φ = 82274496.

The previous prime is 131125123. The next prime is 131125193. The reversal of 131125131 is 131521131.

It is not a de Polignac number, because 131125131 - 2³ = 131125123 is a prime.

It is a super-2 number, since 2×131125131² = 34387599959534322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131125121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 428361 + ... + 428666.

It is an arithmetic number, because the mean of its divisors is an integer number (16712046).

Almost surely, 2^131125131 is an apocalyptic number.

131125131 is a deficient number, since it is larger than the sum of its proper divisors (69419421).

131125131 is a wasteful number, since it uses less digits than its factorization.

131125131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857050 (or 857047 counting only the distinct ones).

The product of its digits is 90, while the sum is 18.

The square root of 131125131 is about 11450.9882106306. The cubic root of 131125131 is about 508.0369635926.

Adding to 131125131 its reverse (131521131), we get a palindrome (262646262).

The spelling of 131125131 in words is "one hundred thirty-one million, one hundred twenty-five thousand, one hundred thirty-one".