630147172 has 6 divisors (see below), whose sum is σ = 1102757558. Its totient is φ = 315073584.

The previous prime is 630147139. The next prime is 630147197. The reversal of 630147172 is 271741036.

It can be written as a sum of positive squares in only one way, i.e., 542237796 + 87909376 = 23286^2 + 9376^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78768393 + ... + 78768400.

Almost surely, 2^630147172 is an apocalyptic number.

It is an amenable number.

630147172 is a deficient number, since it is larger than the sum of its proper divisors (472610386).

630147172 is a wasteful number, since it uses less digits than its factorization.

630147172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157536797 (or 157536795 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 630147172 is about 25102.7323612391. The cubic root of 630147172 is about 857.3286369740.

The spelling of 630147172 in words is "six hundred thirty million, one hundred forty-seven thousand, one hundred seventy-two".