512613131 has 2 divisors, whose sum is σ = 512613132. Its totient is φ = 512613130.

The previous prime is 512613097. The next prime is 512613151. The reversal of 512613131 is 131316215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 512613131 - 2¹⁸ = 512350987 is a prime.

It is a super-2 number, since 2×512613131² = 525544444147246322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 512613097 and 512613106.

It is not a weakly prime, because it can be changed into another prime (512613151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256306565 + 256306566.

It is an arithmetic number, because the mean of its divisors is an integer number (256306566).

Almost surely, 2^512613131 is an apocalyptic number.

512613131 is a deficient number, since it is larger than the sum of its proper divisors (1).

512613131 is an equidigital number, since it uses as much as digits as its factorization.

512613131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 23.

The square root of 512613131 is about 22640.9613532641. The cubic root of 512613131 is about 800.3192116754.

Adding to 512613131 its reverse (131316215), we get a palindrome (643929346).

The spelling of 512613131 in words is "five hundred twelve million, six hundred thirteen thousand, one hundred thirty-one".