131324839 has 2 divisors, whose sum is σ = 131324840. Its totient is φ = 131324838.

The previous prime is 131324833. The next prime is 131324849. The reversal of 131324839 is 938423131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131324839 - 2²¹ = 129227687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131324833) 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 as a sum of consecutive naturals, namely, 65662419 + 65662420.

It is an arithmetic number, because the mean of its divisors is an integer number (65662420).

Almost surely, 2^131324839 is an apocalyptic number.

131324839 is a deficient number, since it is larger than the sum of its proper divisors (1).

131324839 is an equidigital number, since it uses as much as digits as its factorization.

131324839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 131324839 is about 11459.7050136555. The cubic root of 131324839 is about 508.2947519107.

It can be divided in two parts, 13132 and 4839, that added together give a palindrome (17971).

The spelling of 131324839 in words is "one hundred thirty-one million, three hundred twenty-four thousand, eight hundred thirty-nine".