630073251 has 12 divisors (see below), whose sum is σ = 910761280. Its totient is φ = 419746320.

The previous prime is 630073207. The next prime is 630073253. The reversal of 630073251 is 152370036.

It is a happy number.

630073251 is a `hidden beast` number, since 630 + 0 + 7 + 3 + 25 + 1 = 666.

630073251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 630073251 - 2⁹ = 630072739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630073253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11635 + ... + 37356.

Almost surely, 2^630073251 is an apocalyptic number.

630073251 is a deficient number, since it is larger than the sum of its proper divisors (280688029).

630073251 is a wasteful number, since it uses less digits than its factorization.

630073251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50426 (or 50423 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 630073251 is about 25101.2599484568. The cubic root of 630073251 is about 857.2951119652.

The spelling of 630073251 in words is "six hundred thirty million, seventy-three thousand, two hundred fifty-one".