131130291 has 16 divisors (see below), whose sum is σ = 182939904. Its totient is φ = 83391264.

The previous prime is 131130287. The next prime is 131130313. The reversal of 131130291 is 192031131.

It is not a de Polignac number, because 131130291 - 2² = 131130287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131130211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25000 + ... + 29786.

It is an arithmetic number, because the mean of its divisors is an integer number (11433744).

Almost surely, 2^131130291 is an apocalyptic number.

131130291 is a deficient number, since it is larger than the sum of its proper divisors (51809613).

131130291 is a wasteful number, since it uses less digits than its factorization.

131130291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 131130291 is about 11451.2135164794. The cubic root of 131130291 is about 508.0436275487.

The spelling of 131130291 in words is "one hundred thirty-one million, one hundred thirty thousand, two hundred ninety-one".