131941959 has 4 divisors (see below), whose sum is σ = 175922616. Its totient is φ = 87961304.

The previous prime is 131941949. The next prime is 131941973. The reversal of 131941959 is 959149131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131941959 - 2⁸ = 131941703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131941959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131941919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21990324 + ... + 21990329.

It is an arithmetic number, because the mean of its divisors is an integer number (43980654).

Almost surely, 2^131941959 is an apocalyptic number.

131941959 is a deficient number, since it is larger than the sum of its proper divisors (43980657).

131941959 is an equidigital number, since it uses as much as digits as its factorization.

131941959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43980656.

The product of its digits is 43740, while the sum is 42.

The square root of 131941959 is about 11486.5991050441. The cubic root of 131941959 is about 509.0896987342.

The spelling of 131941959 in words is "one hundred thirty-one million, nine hundred forty-one thousand, nine hundred fifty-nine".