131434313 has 2 divisors, whose sum is σ = 131434314. Its totient is φ = 131434312.

The previous prime is 131434309. The next prime is 131434319. The reversal of 131434313 is 313434131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126607504 + 4826809 = 11252^2 + 2197^2 .

It is a cyclic number.

It is not a de Polignac number, because 131434313 - 2² = 131434309 is a prime.

It is not a weakly prime, because it can be changed into another prime (131434319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65717156 + 65717157.

It is an arithmetic number, because the mean of its divisors is an integer number (65717157).

Almost surely, 2^131434313 is an apocalyptic number.

It is an amenable number.

131434313 is a deficient number, since it is larger than the sum of its proper divisors (1).

131434313 is an equidigital number, since it uses as much as digits as its factorization.

131434313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 23.

The square root of 131434313 is about 11464.4804941175. The cubic root of 131434313 is about 508.4359529334.

Adding to 131434313 its reverse (313434131), we get a palindrome (444868444).

The spelling of 131434313 in words is "one hundred thirty-one million, four hundred thirty-four thousand, three hundred thirteen".