630137701 has 4 divisors (see below), whose sum is σ = 630376992. Its totient is φ = 629898412.

The previous prime is 630137671. The next prime is 630137707. The reversal of 630137701 is 107731036.

630137701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630137701 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 630137701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630137707) 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, 115651 + ... + 120976.

It is an arithmetic number, because the mean of its divisors is an integer number (157594248).

Almost surely, 2^630137701 is an apocalyptic number.

It is an amenable number.

630137701 is a deficient number, since it is larger than the sum of its proper divisors (239291).

630137701 is a wasteful number, since it uses less digits than its factorization.

630137701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239290.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 630137701 is about 25102.5437157273. The cubic root of 630137701 is about 857.3243417868.

Adding to 630137701 its reverse (107731036), we get a palindrome (737868737).

The spelling of 630137701 in words is "six hundred thirty million, one hundred thirty-seven thousand, seven hundred one".