131325291 has 6 divisors (see below), whose sum is σ = 189692100. Its totient is φ = 87550188.

The previous prime is 131325281. The next prime is 131325307. The reversal of 131325291 is 192523131.

131325291 is a `hidden beast` number, since 1 + 3 + 132 + 529 + 1 = 666.

It is not a de Polignac number, because 131325291 - 2⁷ = 131325163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131325211) 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 5 ways as a sum of consecutive naturals, for example, 7295841 + ... + 7295858.

It is an arithmetic number, because the mean of its divisors is an integer number (31615350).

Almost surely, 2^131325291 is an apocalyptic number.

131325291 is a deficient number, since it is larger than the sum of its proper divisors (58366809).

131325291 is a wasteful number, since it uses less digits than its factorization.

131325291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14591705 (or 14591702 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 131325291 is about 11459.7247349140. The cubic root of 131325291 is about 508.2953350676.

The spelling of 131325291 in words is "one hundred thirty-one million, three hundred twenty-five thousand, two hundred ninety-one".