22530239 has 2 divisors, whose sum is σ = 22530240. Its totient is φ = 22530238.

The previous prime is 22530227. The next prime is 22530251. The reversal of 22530239 is 93203522.

It is a balanced prime because it is at equal distance from previous prime (22530227) and next prime (22530251).

It is a cyclic number.

It is not a de Polignac number, because 22530239 - 2⁴ = 22530223 is a prime.

It is a super-2 number, since 2×22530239² = 1015223338794242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22530269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11265119 + 11265120.

It is an arithmetic number, because the mean of its divisors is an integer number (11265120).

Almost surely, 2^22530239 is an apocalyptic number.

22530239 is a deficient number, since it is larger than the sum of its proper divisors (1).

22530239 is an equidigital number, since it uses as much as digits as its factorization.

22530239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 22530239 is about 4746.6028904892. The cubic root of 22530239 is about 282.4372231093.

The spelling of 22530239 in words is "twenty-two million, five hundred thirty thousand, two hundred thirty-nine".