131013149 has 2 divisors, whose sum is σ = 131013150. Its totient is φ = 131013148.

The previous prime is 131013139. The next prime is 131013229. The reversal of 131013149 is 941310131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106461124 + 24552025 = 10318^2 + 4955^2 .

It is a cyclic number.

It is not a de Polignac number, because 131013149 - 2⁴ = 131013133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131013139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65506574 + 65506575.

It is an arithmetic number, because the mean of its divisors is an integer number (65506575).

Almost surely, 2^131013149 is an apocalyptic number.

It is an amenable number.

131013149 is a deficient number, since it is larger than the sum of its proper divisors (1).

131013149 is an equidigital number, since it uses as much as digits as its factorization.

131013149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 131013149 is about 11446.0975445782. The cubic root of 131013149 is about 507.8922997446.

The spelling of 131013149 in words is "one hundred thirty-one million, thirteen thousand, one hundred forty-nine".