630156129 has 8 divisors (see below), whose sum is σ = 840345120. Its totient is φ = 420035616.

The previous prime is 630156097. The next prime is 630156143. The reversal of 630156129 is 921651036.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 630156129 - 2⁵ = 630156097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 630156129.

It is not an unprimeable number, because it can be changed into a prime (630156179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10914 + ... + 37140.

It is an arithmetic number, because the mean of its divisors is an integer number (105043140).

Almost surely, 2^630156129 is an apocalyptic number.

It is an amenable number.

630156129 is a deficient number, since it is larger than the sum of its proper divisors (210188991).

630156129 is a wasteful number, since it uses less digits than its factorization.

630156129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34239.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 630156129 is about 25102.9107674787. The cubic root of 630156129 is about 857.3326990178.

The spelling of 630156129 in words is "six hundred thirty million, one hundred fifty-six thousand, one hundred twenty-nine".