131244329 has 2 divisors, whose sum is σ = 131244330. Its totient is φ = 131244328.

The previous prime is 131244319. The next prime is 131244361. The reversal of 131244329 is 923442131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119355625 + 11888704 = 10925^2 + 3448^2 .

It is an emirp because it is prime and its reverse (923442131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131244329 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (131244319) 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, 65622164 + 65622165.

It is an arithmetic number, because the mean of its divisors is an integer number (65622165).

Almost surely, 2^131244329 is an apocalyptic number.

It is an amenable number.

131244329 is a deficient number, since it is larger than the sum of its proper divisors (1).

131244329 is an equidigital number, since it uses as much as digits as its factorization.

131244329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 131244329 is about 11456.1917319849. The cubic root of 131244329 is about 508.1908589576.

The spelling of 131244329 in words is "one hundred thirty-one million, two hundred forty-four thousand, three hundred twenty-nine".