131660475 has 24 divisors (see below), whose sum is σ = 218349120. Its totient is φ = 70002720.

The previous prime is 131660449. The next prime is 131660491. The reversal of 131660475 is 574066131.

It is not a de Polignac number, because 131660475 - 2⁶ = 131660411 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 23496 + ... + 28554.

It is an arithmetic number, because the mean of its divisors is an integer number (9097880).

Almost surely, 2^131660475 is an apocalyptic number.

131660475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131660475 is a deficient number, since it is larger than the sum of its proper divisors (86688645).

131660475 is a wasteful number, since it uses less digits than its factorization.

131660475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419 (or 5414 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 131660475 is about 11474.3398502920. The cubic root of 131660475 is about 508.7274115783.

The spelling of 131660475 in words is "one hundred thirty-one million, six hundred sixty thousand, four hundred seventy-five".