131596247 has 4 divisors (see below), whose sum is σ = 131642616. Its totient is φ = 131549880.

The previous prime is 131596243. The next prime is 131596249. The reversal of 131596247 is 742695131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742695131 = 14821 ⋅50111.

It is a cyclic number.

It is not a de Polignac number, because 131596247 - 2² = 131596243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131596247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131596243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18629 + ... + 24702.

It is an arithmetic number, because the mean of its divisors is an integer number (32910654).

Almost surely, 2^131596247 is an apocalyptic number.

131596247 is a deficient number, since it is larger than the sum of its proper divisors (46369).

131596247 is an equidigital number, since it uses as much as digits as its factorization.

131596247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46368.

The product of its digits is 45360, while the sum is 38.

The square root of 131596247 is about 11471.5407422020. The cubic root of 131596247 is about 508.6446738677.

The spelling of 131596247 in words is "one hundred thirty-one million, five hundred ninety-six thousand, two hundred forty-seven".