516231413 has 2 divisors, whose sum is σ = 516231414. Its totient is φ = 516231412.

The previous prime is 516231403. The next prime is 516231421. The reversal of 516231413 is 314132615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281467729 + 234763684 = 16777^2 + 15322^2 .

It is a cyclic number.

It is not a de Polignac number, because 516231413 - 2²⁸ = 247795957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516231403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258115706 + 258115707.

It is an arithmetic number, because the mean of its divisors is an integer number (258115707).

Almost surely, 2^516231413 is an apocalyptic number.

It is an amenable number.

516231413 is a deficient number, since it is larger than the sum of its proper divisors (1).

516231413 is an equidigital number, since it uses as much as digits as its factorization.

516231413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 516231413 is about 22720.7265068703. The cubic root of 516231413 is about 802.1978174065.

The spelling of 516231413 in words is "five hundred sixteen million, two hundred thirty-one thousand, four hundred thirteen".