630133309 has 32 divisors (see below), whose sum is σ = 741171200. Its totient is φ = 530712000.

The previous prime is 630133303. The next prime is 630133327. The reversal of 630133309 is 903331036.

630133309 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 630133309 - 2⁷ = 630133181 is a prime.

It is a super-4 number, since 4×630133309⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630133303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 838684 + ... + 839434.

It is an arithmetic number, because the mean of its divisors is an integer number (23161600).

Almost surely, 2^630133309 is an apocalyptic number.

It is an amenable number.

630133309 is a deficient number, since it is larger than the sum of its proper divisors (111037891).

630133309 is a wasteful number, since it uses less digits than its factorization.

630133309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

The product of its (nonzero) digits is 4374, while the sum is 28.

The square root of 630133309 is about 25102.4562344006. The cubic root of 630133309 is about 857.3223499590.

The spelling of 630133309 in words is "six hundred thirty million, one hundred thirty-three thousand, three hundred nine".