2162251631 has 4 divisors (see below), whose sum is σ = 2165862000. Its totient is φ = 2158641264.

The previous prime is 2162251627. The next prime is 2162251669. The reversal of 2162251631 is 1361522612.

2162251631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2162251631 - 2² = 2162251627 is a prime.

It is a super-2 number, since 2×2162251631² = 9350664231524320322, 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 = 2162251594 and 2162251603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162251601) 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, 1804286 + ... + 1805483.

It is an arithmetic number, because the mean of its divisors is an integer number (541465500).

Almost surely, 2^2162251631 is an apocalyptic number.

2162251631 is a deficient number, since it is larger than the sum of its proper divisors (3610369).

2162251631 is an equidigital number, since it uses as much as digits as its factorization.

2162251631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3610368.

The product of its digits is 4320, while the sum is 29.

The square root of 2162251631 is about 46500.0175376311. The cubic root of 2162251631 is about 1293.1098239560.

The spelling of 2162251631 in words is "two billion, one hundred sixty-two million, two hundred fifty-one thousand, six hundred thirty-one".