630147171 has 4 divisors (see below), whose sum is σ = 840196232. Its totient is φ = 420098112.

The previous prime is 630147139. The next prime is 630147197. The reversal of 630147171 is 171741036.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 630147171 - 2⁵ = 630147139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630147131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105024526 + ... + 105024531.

It is an arithmetic number, because the mean of its divisors is an integer number (210049058).

Almost surely, 2^630147171 is an apocalyptic number.

630147171 is a deficient number, since it is larger than the sum of its proper divisors (210049061).

630147171 is a wasteful number, since it uses less digits than its factorization.

630147171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210049060.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 630147171 is about 25102.7323413209. The cubic root of 630147171 is about 857.3286365205.

The spelling of 630147171 in words is "six hundred thirty million, one hundred forty-seven thousand, one hundred seventy-one".