2162331 has 6 divisors (see below), whose sum is σ = 3123380. Its totient is φ = 1441548.

The previous prime is 2162323. The next prime is 2162339. The reversal of 2162331 is 1332612.

2162331 = 173² + 174² + ... + 226².

It is an interprime number because it is at equal distance from previous prime (2162323) and next prime (2162339).

It is not a de Polignac number, because 2162331 - 2³ = 2162323 is a prime.

It is a super-2 number, since 2×2162331² = 9351350707122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2162339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120121 + ... + 120138.

2^2162331 is an apocalyptic number.

2162331 is a deficient number, since it is larger than the sum of its proper divisors (961049).

2162331 is a wasteful number, since it uses less digits than its factorization.

2162331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240265 (or 240262 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 2162331 is about 1470.4866541387. The cubic root of 2162331 is about 129.3125645670.

Adding to 2162331 its reverse (1332612), we get a palindrome (3494943).

The spelling of 2162331 in words is "two million, one hundred sixty-two thousand, three hundred thirty-one".