131332091 has 8 divisors (see below), whose sum is σ = 143355504. Its totient is φ = 119322720.

The previous prime is 131332067. The next prime is 131332111. The reversal of 131332091 is 190233131.

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

It is a de Polignac number, because none of the positive numbers 2^k-131332091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131332031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30041 + ... + 34133.

It is an arithmetic number, because the mean of its divisors is an integer number (17919438).

Almost surely, 2^131332091 is an apocalyptic number.

131332091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131332091 is a deficient number, since it is larger than the sum of its proper divisors (12023413).

131332091 is a wasteful number, since it uses less digits than its factorization.

131332091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7021.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 131332091 is about 11460.0214223185. The cubic root of 131332091 is about 508.3041080633.

The spelling of 131332091 in words is "one hundred thirty-one million, three hundred thirty-two thousand, ninety-one".