131825475 has 30 divisors (see below), whose sum is σ = 244190100. Its totient is φ = 70305840.

The previous prime is 131825467. The next prime is 131825479. The reversal of 131825475 is 574528131.

131825475 is a `hidden beast` number, since 1 + 3 + 182 + 5 + 475 = 666.

It is not a de Polignac number, because 131825475 - 2³ = 131825467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131825479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 30525 + ... + 34574.

It is an arithmetic number, because the mean of its divisors is an integer number (8139670).

Almost surely, 2^131825475 is an apocalyptic number.

131825475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131825475 is a deficient number, since it is larger than the sum of its proper divisors (112364625).

131825475 is an equidigital number, since it uses as much as digits as its factorization.

131825475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65121 (or 65107 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 131825475 is about 11481.5275551644. The cubic root of 131825475 is about 508.9398392440.

The spelling of 131825475 in words is "one hundred thirty-one million, eight hundred twenty-five thousand, four hundred seventy-five".