23162831 has 2 divisors, whose sum is σ = 23162832. Its totient is φ = 23162830.

The previous prime is 23162813. The next prime is 23162833. The reversal of 23162831 is 13826132.

Together with previous prime (23162813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23162831 is a prime.

It is a super-2 number, since 2×23162831² = 1073033479869122, which contains 22 as substring.

Together with 23162833, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23162831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23162833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11581415 + 11581416.

It is an arithmetic number, because the mean of its divisors is an integer number (11581416).

Almost surely, 2^23162831 is an apocalyptic number.

23162831 is a deficient number, since it is larger than the sum of its proper divisors (1).

23162831 is an equidigital number, since it uses as much as digits as its factorization.

23162831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 23162831 is about 4812.7778880809. Note that the first 3 decimals coincide. The cubic root of 23162831 is about 285.0562359532.

Adding to 23162831 its reverse (13826132), we get a palindrome (36988963).

The spelling of 23162831 in words is "twenty-three million, one hundred sixty-two thousand, eight hundred thirty-one".