131606975 has 6 divisors (see below), whose sum is σ = 163192680. Its totient is φ = 105285560.

The previous prime is 131606971. The next prime is 131606983. The reversal of 131606975 is 579606131.

It is not a de Polignac number, because 131606975 - 2² = 131606971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131606971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2632115 + ... + 2632164.

It is an arithmetic number, because the mean of its divisors is an integer number (27198780).

Almost surely, 2^131606975 is an apocalyptic number.

131606975 is a deficient number, since it is larger than the sum of its proper divisors (31585705).

131606975 is an equidigital number, since it uses as much as digits as its factorization.

131606975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5264289 (or 5264284 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 131606975 is about 11472.0083246134. The cubic root of 131606975 is about 508.6584954163.

The spelling of 131606975 in words is "one hundred thirty-one million, six hundred six thousand, nine hundred seventy-five".