131975590 has 16 divisors (see below), whose sum is σ = 251530272. Its totient is φ = 49684864.

The previous prime is 131975563. The next prime is 131975593. The reversal of 131975590 is 95579131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131975593) 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 7 ways as a sum of consecutive naturals, for example, 387994 + ... + 388333.

It is an arithmetic number, because the mean of its divisors is an integer number (15720642).

Almost surely, 2^131975590 is an apocalyptic number.

131975590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131975590 is a deficient number, since it is larger than the sum of its proper divisors (119554682).

131975590 is a wasteful number, since it uses less digits than its factorization.

131975590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776351.

The product of its (nonzero) digits is 42525, while the sum is 40.

The square root of 131975590 is about 11488.0629350644. The cubic root of 131975590 is about 509.1329494213.

The spelling of 131975590 in words is "one hundred thirty-one million, nine hundred seventy-five thousand, five hundred ninety".