630037013 has 4 divisors (see below), whose sum is σ = 630682860. Its totient is φ = 629391168.

The previous prime is 630037003. The next prime is 630037027. The reversal of 630037013 is 310730036.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 488498404 + 141538609 = 22102^2 + 11897^2 .

It is a cyclic number.

It is not a de Polignac number, because 630037013 - 2¹⁶ = 629971477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 630037013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630037003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321458 + ... + 323411.

It is an arithmetic number, because the mean of its divisors is an integer number (157670715).

Almost surely, 2^630037013 is an apocalyptic number.

It is an amenable number.

630037013 is a deficient number, since it is larger than the sum of its proper divisors (645847).

630037013 is an equidigital number, since it uses as much as digits as its factorization.

630037013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645846.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 630037013 is about 25100.5381018017. The cubic root of 630037013 is about 857.2786761747.

Adding to 630037013 its reverse (310730036), we get a palindrome (940767049).

The spelling of 630037013 in words is "six hundred thirty million, thirty-seven thousand, thirteen".