630131308 has 12 divisors (see below), whose sum is σ = 1103362792. Its totient is φ = 314884800.

The previous prime is 630131291. The next prime is 630131309. The reversal of 630131308 is 803131036.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (630131309) 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, 37218 + ... + 51433.

Almost surely, 2^630131308 is an apocalyptic number.

It is an amenable number.

630131308 is a deficient number, since it is larger than the sum of its proper divisors (473231484).

630131308 is a wasteful number, since it uses less digits than its factorization.

630131308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90432 (or 90430 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 630131308 is about 25102.4163777115. The cubic root of 630131308 is about 857.3214424771.

The spelling of 630131308 in words is "six hundred thirty million, one hundred thirty-one thousand, three hundred eight".