531626113 has 2 divisors, whose sum is σ = 531626114. Its totient is φ = 531626112.

The previous prime is 531626107. The next prime is 531626129. The reversal of 531626113 is 311626135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 473149504 + 58476609 = 21752^2 + 7647^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531626113 is a prime.

It is not a weakly prime, because it can be changed into another prime (531626143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265813056 + 265813057.

It is an arithmetic number, because the mean of its divisors is an integer number (265813057).

Almost surely, 2^531626113 is an apocalyptic number.

It is an amenable number.

531626113 is a deficient number, since it is larger than the sum of its proper divisors (1).

531626113 is an equidigital number, since it uses as much as digits as its factorization.

531626113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 531626113 is about 23057.0187361680. The cubic root of 531626113 is about 810.0940362298.

The spelling of 531626113 in words is "five hundred thirty-one million, six hundred twenty-six thousand, one hundred thirteen".