131426129 has 2 divisors, whose sum is σ = 131426130. Its totient is φ = 131426128.

The previous prime is 131426111. The next prime is 131426179. The reversal of 131426129 is 921624131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85525504 + 45900625 = 9248^2 + 6775^2 .

It is a cyclic number.

It is not a de Polignac number, because 131426129 - 2⁸ = 131425873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131426179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65713064 + 65713065.

It is an arithmetic number, because the mean of its divisors is an integer number (65713065).

Almost surely, 2^131426129 is an apocalyptic number.

It is an amenable number.

131426129 is a deficient number, since it is larger than the sum of its proper divisors (1).

131426129 is an equidigital number, since it uses as much as digits as its factorization.

131426129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 131426129 is about 11464.1235600459. The cubic root of 131426129 is about 508.4253998134.

The spelling of 131426129 in words is "one hundred thirty-one million, four hundred twenty-six thousand, one hundred twenty-nine".