630837161 has 8 divisors (see below), whose sum is σ = 648716544. Its totient is φ = 613001520.

The previous prime is 630837157. The next prime is 630837167. The reversal of 630837161 is 161738036.

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

It is a cyclic number.

It is not a de Polignac number, because 630837161 - 2² = 630837157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630837167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19496 + ... + 40518.

It is an arithmetic number, because the mean of its divisors is an integer number (81089568).

Almost surely, 2^630837161 is an apocalyptic number.

It is an amenable number.

630837161 is a deficient number, since it is larger than the sum of its proper divisors (17879383).

630837161 is a wasteful number, since it uses less digits than its factorization.

630837161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21871.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 630837161 is about 25116.4719059027. The cubic root of 630837161 is about 857.6414377389.

The spelling of 630837161 in words is "six hundred thirty million, eight hundred thirty-seven thousand, one hundred sixty-one".