630147919 has 2 divisors, whose sum is σ = 630147920. Its totient is φ = 630147918.

The previous prime is 630147911. The next prime is 630147949. The reversal of 630147919 is 919741036.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630147919 - 2³ = 630147911 is a prime.

It is a super-2 number, since 2×630147919² = 794172799640061122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630147911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315073959 + 315073960.

It is an arithmetic number, because the mean of its divisors is an integer number (315073960).

Almost surely, 2^630147919 is an apocalyptic number.

630147919 is a deficient number, since it is larger than the sum of its proper divisors (1).

630147919 is an equidigital number, since it uses as much as digits as its factorization.

630147919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 630147919 is about 25102.7472400931. The cubic root of 630147919 is about 857.3289757436.

The spelling of 630147919 in words is "six hundred thirty million, one hundred forty-seven thousand, nine hundred nineteen".