131434129 has 2 divisors, whose sum is σ = 131434130. Its totient is φ = 131434128.

The previous prime is 131434111. The next prime is 131434133. The reversal of 131434129 is 921434131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66389904 + 65044225 = 8148^2 + 8065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131434129 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131434097 and 131434106.

It is not a weakly prime, because it can be changed into another prime (131434109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65717064 + 65717065.

It is an arithmetic number, because the mean of its divisors is an integer number (65717065).

Almost surely, 2^131434129 is an apocalyptic number.

It is an amenable number.

131434129 is a deficient number, since it is larger than the sum of its proper divisors (1).

131434129 is an equidigital number, since it uses as much as digits as its factorization.

131434129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 131434129 is about 11464.4724693289. The cubic root of 131434129 is about 508.4357156735.

The spelling of 131434129 in words is "one hundred thirty-one million, four hundred thirty-four thousand, one hundred twenty-nine".