131306475 has 24 divisors (see below), whose sum is σ = 219343600. Its totient is φ = 69304320.

The previous prime is 131306467. The next prime is 131306491. The reversal of 131306475 is 574603131.

It is not a de Polignac number, because 131306475 - 2³ = 131306467 is a prime.

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, 1750 + ... + 16299.

Almost surely, 2^131306475 is an apocalyptic number.

131306475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131306475 is a deficient number, since it is larger than the sum of its proper divisors (88037125).

131306475 is a wasteful number, since it uses less digits than its factorization.

131306475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18159 (or 18154 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 131306475 is about 11458.9037433779. The cubic root of 131306475 is about 508.2710580941.

The spelling of 131306475 in words is "one hundred thirty-one million, three hundred six thousand, four hundred seventy-five".