531667013 has 2 divisors, whose sum is σ = 531667014. Its totient is φ = 531667012.

The previous prime is 531667001. The next prime is 531667079. The reversal of 531667013 is 310766135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313750369 + 217916644 = 17713^2 + 14762^2 .

It is a cyclic number.

It is not a de Polignac number, because 531667013 - 2¹⁸ = 531404869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531667613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265833506 + 265833507.

It is an arithmetic number, because the mean of its divisors is an integer number (265833507).

Almost surely, 2^531667013 is an apocalyptic number.

It is an amenable number.

531667013 is a deficient number, since it is larger than the sum of its proper divisors (1).

531667013 is an equidigital number, since it uses as much as digits as its factorization.

531667013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 531667013 is about 23057.9056507741. The cubic root of 531667013 is about 810.1148102259.

The spelling of 531667013 in words is "five hundred thirty-one million, six hundred sixty-seven thousand, thirteen".