630602231 has 4 divisors (see below), whose sum is σ = 720688272. Its totient is φ = 540516192.

The previous prime is 630602227. The next prime is 630602237. The reversal of 630602231 is 132206036.

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

It is a cyclic number.

It is not a de Polignac number, because 630602231 - 2² = 630602227 is a prime.

It is a super-2 number, since 2×630602231² = 795318347484354722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 630602197 and 630602206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630602237) 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, 45043010 + ... + 45043023.

It is an arithmetic number, because the mean of its divisors is an integer number (180172068).

Almost surely, 2^630602231 is an apocalyptic number.

630602231 is a deficient number, since it is larger than the sum of its proper divisors (90086041).

630602231 is an equidigital number, since it uses as much as digits as its factorization.

630602231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90086040.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 630602231 is about 25111.7946590840. The cubic root of 630602231 is about 857.5349598012.

Adding to 630602231 its reverse (132206036), we get a palindrome (762808267).

The spelling of 630602231 in words is "six hundred thirty million, six hundred two thousand, two hundred thirty-one".