631166041 has 4 divisors (see below), whose sum is σ = 688544784. Its totient is φ = 573787300.

The previous prime is 631166033. The next prime is 631166047. The reversal of 631166041 is 140661136.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 631166041 - 2³ = 631166033 is a prime.

It is a super-2 number, since 2×631166041² = 796741142623227362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631166047) 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, 28689355 + ... + 28689376.

It is an arithmetic number, because the mean of its divisors is an integer number (172136196).

Almost surely, 2^631166041 is an apocalyptic number.

It is an amenable number.

631166041 is a deficient number, since it is larger than the sum of its proper divisors (57378743).

631166041 is a wasteful number, since it uses less digits than its factorization.

631166041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57378742.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 631166041 is about 25123.0181506920. The cubic root of 631166041 is about 857.7904524827.

The spelling of 631166041 in words is "six hundred thirty-one million, one hundred sixty-six thousand, forty-one".