131255329 has 2 divisors, whose sum is σ = 131255330. Its totient is φ = 131255328.

The previous prime is 131255303. The next prime is 131255339. The reversal of 131255329 is 923552131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116640000 + 14615329 = 10800^2 + 3823^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131255329 is a prime.

It is a super-2 number, since 2×131255329² = 34455922781796482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131255329.

It is not a weakly prime, because it can be changed into another prime (131255339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65627664 + 65627665.

It is an arithmetic number, because the mean of its divisors is an integer number (65627665).

Almost surely, 2^131255329 is an apocalyptic number.

It is an amenable number.

131255329 is a deficient number, since it is larger than the sum of its proper divisors (1).

131255329 is an equidigital number, since it uses as much as digits as its factorization.

131255329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 31.

The square root of 131255329 is about 11456.6718116563. The cubic root of 131255329 is about 508.2050562524.

The spelling of 131255329 in words is "one hundred thirty-one million, two hundred fifty-five thousand, three hundred twenty-nine".