630576013 has 2 divisors, whose sum is σ = 630576014. Its totient is φ = 630576012.

The previous prime is 630575999. The next prime is 630576041. The reversal of 630576013 is 310675036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 599417289 + 31158724 = 24483^2 + 5582^2 .

It is a cyclic number.

It is not a de Polignac number, because 630576013 - 2²¹ = 628478861 is a prime.

It is a super-2 number, since 2×630576013² = 795252216341952338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630576043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315288006 + 315288007.

It is an arithmetic number, because the mean of its divisors is an integer number (315288007).

Almost surely, 2^630576013 is an apocalyptic number.

It is an amenable number.

630576013 is a deficient number, since it is larger than the sum of its proper divisors (1).

630576013 is an equidigital number, since it uses as much as digits as its factorization.

630576013 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 31.

The square root of 630576013 is about 25111.2726280450. The cubic root of 630576013 is about 857.5230753083.

The spelling of 630576013 in words is "six hundred thirty million, five hundred seventy-six thousand, thirteen".