131293837 has 2 divisors, whose sum is σ = 131293838. Its totient is φ = 131293836.

The previous prime is 131293831. The next prime is 131293901. The reversal of 131293837 is 738392131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117050761 + 14243076 = 10819^2 + 3774^2 .

It is a cyclic number.

It is not a de Polignac number, because 131293837 - 2⁷ = 131293709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131293796 and 131293805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131293831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65646918 + 65646919.

It is an arithmetic number, because the mean of its divisors is an integer number (65646919).

Almost surely, 2^131293837 is an apocalyptic number.

It is an amenable number.

131293837 is a deficient number, since it is larger than the sum of its proper divisors (1).

131293837 is an equidigital number, since it uses as much as digits as its factorization.

131293837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 131293837 is about 11458.3522811965. The cubic root of 131293837 is about 508.2547508614.

The spelling of 131293837 in words is "one hundred thirty-one million, two hundred ninety-three thousand, eight hundred thirty-seven".