2160631 has 8 divisors (see below), whose sum is σ = 2381184. Its totient is φ = 1944120.

The previous prime is 2160629. The next prime is 2160671. The reversal of 2160631 is 1360612.

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 2160631 - 2¹ = 2160629 is a prime.

It is a super-2 number, since 2×2160631² = 9336652636322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2160599 and 2160608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180 + ... + 2086.

It is an arithmetic number, because the mean of its divisors is an integer number (297648).

2^2160631 is an apocalyptic number.

2160631 is a deficient number, since it is larger than the sum of its proper divisors (220553).

2160631 is a wasteful number, since it uses less digits than its factorization.

2160631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2160631 is about 1469.9085005537. The cubic root of 2160631 is about 129.2786676605.

Subtracting from 2160631 its sum of digits (19), we obtain a palindrome (2160612).

The spelling of 2160631 in words is "two million, one hundred sixty thousand, six hundred thirty-one".