630154863 has 24 divisors (see below), whose sum is σ = 1010906640. Its totient is φ = 387784800.

The previous prime is 630154849. The next prime is 630154867. The reversal of 630154863 is 368451036.

630154863 is a `hidden beast` number, since 630 + 15 + 4 + 8 + 6 + 3 = 666.

It is not a de Polignac number, because 630154863 - 2⁵ = 630154831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630154867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64488 + ... + 73613.

It is an arithmetic number, because the mean of its divisors is an integer number (42121110).

Almost surely, 2^630154863 is an apocalyptic number.

630154863 is a deficient number, since it is larger than the sum of its proper divisors (380751777).

630154863 is a wasteful number, since it uses less digits than its factorization.

630154863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138136 (or 138117 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 630154863 is about 25102.8855512668. The cubic root of 630154863 is about 857.3321248828.

The spelling of 630154863 in words is "six hundred thirty million, one hundred fifty-four thousand, eight hundred sixty-three".