131928959 has 8 divisors (see below), whose sum is σ = 139812480. Its totient is φ = 124059136.

The previous prime is 131928949. The next prime is 131928971. The reversal of 131928959 is 959829131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131928959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131928919) 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 7 ways as a sum of consecutive naturals, for example, 21767 + ... + 27159.

It is an arithmetic number, because the mean of its divisors is an integer number (17476560).

Almost surely, 2^131928959 is an apocalyptic number.

131928959 is a deficient number, since it is larger than the sum of its proper divisors (7883521).

131928959 is a wasteful number, since it uses less digits than its factorization.

131928959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6849.

The product of its digits is 174960, while the sum is 47.

The square root of 131928959 is about 11486.0332142999. The cubic root of 131928959 is about 509.0729782926.

The spelling of 131928959 in words is "one hundred thirty-one million, nine hundred twenty-eight thousand, nine hundred fifty-nine".