630195156 has 72 divisors (see below), whose sum is σ = 1660958208. Its totient is φ = 201240000.

The previous prime is 630195149. The next prime is 630195169. The reversal of 630195156 is 651591036.

630195156 is a `hidden beast` number, since 630 + 1 + 9 + 5 + 15 + 6 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 630195156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109921 + ... + 115511.

It is an arithmetic number, because the mean of its divisors is an integer number (23068864).

Almost surely, 2^630195156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630195156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (830479104).

630195156 is an abundant number, since it is smaller than the sum of its proper divisors (1030763052).

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

630195156 is a wasteful number, since it uses less digits than its factorization.

630195156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5733 (or 5728 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 630195156 is about 25103.6880955767. The cubic root of 630195156 is about 857.3503975060.

The spelling of 630195156 in words is "six hundred thirty million, one hundred ninety-five thousand, one hundred fifty-six".