22459231 has 2 divisors, whose sum is σ = 22459232. Its totient is φ = 22459230.

The previous prime is 22459187. The next prime is 22459237. The reversal of 22459231 is 13295422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22459231 - 2⁹ = 22458719 is a prime.

It is a super-2 number, since 2×22459231² = 1008834114222722, which contains 22 as substring.

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 22459231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22459237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11229615 + 11229616.

It is an arithmetic number, because the mean of its divisors is an integer number (11229616).

Almost surely, 2^22459231 is an apocalyptic number.

22459231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22459231 is an equidigital number, since it uses as much as digits as its factorization.

22459231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 22459231 is about 4739.1171118680. The cubic root of 22459231 is about 282.1401940280.

It can be divided in two parts, 2245 and 9231, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 22459231 in words is "twenty-two million, four hundred fifty-nine thousand, two hundred thirty-one".