631102885 has 16 divisors (see below), whose sum is σ = 877372416. Its totient is φ = 426826368.

The previous prime is 631102877. The next prime is 631102907. The reversal of 631102885 is 588201136.

It is a cyclic number.

It is not a de Polignac number, because 631102885 - 2³ = 631102877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 631102885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120949 + ... + 126058.

It is an arithmetic number, because the mean of its divisors is an integer number (54835776).

Almost surely, 2^631102885 is an apocalyptic number.

It is an amenable number.

631102885 is a deficient number, since it is larger than the sum of its proper divisors (246269531).

631102885 is a wasteful number, since it uses less digits than its factorization.

631102885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247092.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 631102885 is about 25121.7611842801. The cubic root of 631102885 is about 857.7618406662.

The spelling of 631102885 in words is "six hundred thirty-one million, one hundred two thousand, eight hundred eighty-five".