630531100 has 18 divisors (see below), whose sum is σ = 1368252704. Its totient is φ = 252212400.

The previous prime is 630531061. The next prime is 630531113. The reversal of 630531100 is 1135036.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3152556 + ... + 3152755.

Almost surely, 2^630531100 is an apocalyptic number.

It is an amenable number.

630531100 is an abundant number, since it is smaller than the sum of its proper divisors (737721604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630531100 is a wasteful number, since it uses less digits than its factorization.

630531100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305325 (or 6305318 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 630531100 is about 25110.3783324744. The cubic root of 630531100 is about 857.5027156966.

Adding to 630531100 its reverse (1135036), we get a palindrome (631666136).

The spelling of 630531100 in words is "six hundred thirty million, five hundred thirty-one thousand, one hundred".