41561631 has 6 divisors (see below), whose sum is σ = 60033480. Its totient is φ = 27707748.

The previous prime is 41561623. The next prime is 41561647. The reversal of 41561631 is 13616514.

41561631 is a `hidden beast` number, since 4 + 15 + 616 + 31 = 666.

It is not a de Polignac number, because 41561631 - 2³ = 41561623 is a prime.

It is a super-2 number, since 2×41561631² = 3454738342760322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 41561595 and 41561604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41561671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2308971 + ... + 2308988.

It is an arithmetic number, because the mean of its divisors is an integer number (10005580).

Almost surely, 2^41561631 is an apocalyptic number.

41561631 is a deficient number, since it is larger than the sum of its proper divisors (18471849).

41561631 is a wasteful number, since it uses less digits than its factorization.

41561631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617965 (or 4617962 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 41561631 is about 6446.8310820123. The cubic root of 41561631 is about 346.3890813931.

The spelling of 41561631 in words is "forty-one million, five hundred sixty-one thousand, six hundred thirty-one".