630122164 has 18 divisors (see below), whose sum is σ = 1282749090. Its totient is φ = 270052272.

The previous prime is 630122159. The next prime is 630122201. The reversal of 630122164 is 461221036.

It can be written as a sum of positive squares in only one way, i.e., 520752400 + 109369764 = 22820^2 + 10458^2 .

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, 1607259 + ... + 1607650.

Almost surely, 2^630122164 is an apocalyptic number.

It is an amenable number.

630122164 is an abundant number, since it is smaller than the sum of its proper divisors (652626926).

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

630122164 is a wasteful number, since it uses less digits than its factorization.

630122164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214927 (or 3214918 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 630122164 is about 25102.2342431904. The cubic root of 630122164 is about 857.3172955186.

The spelling of 630122164 in words is "six hundred thirty million, one hundred twenty-two thousand, one hundred sixty-four".