630304139 has 8 divisors (see below), whose sum is σ = 658313520. Its totient is φ = 602872416.

The previous prime is 630304117. The next prime is 630304153. The reversal of 630304139 is 931403036.

630304139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630304139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630304039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142184 + ... + 146549.

It is an arithmetic number, because the mean of its divisors is an integer number (82289190).

Almost surely, 2^630304139 is an apocalyptic number.

630304139 is a deficient number, since it is larger than the sum of its proper divisors (28009381).

630304139 is a wasteful number, since it uses less digits than its factorization.

630304139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288829.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 630304139 is about 25105.8586588868. The cubic root of 630304139 is about 857.3998167120.

The spelling of 630304139 in words is "six hundred thirty million, three hundred four thousand, one hundred thirty-nine".