22530139 has 2 divisors, whose sum is σ = 22530140. Its totient is φ = 22530138.

The previous prime is 22530107. The next prime is 22530161. The reversal of 22530139 is 93103522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22530139 - 2⁵ = 22530107 is a prime.

It is not a weakly prime, because it can be changed into another prime (22530199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11265069 + 11265070.

It is an arithmetic number, because the mean of its divisors is an integer number (11265070).

Almost surely, 2^22530139 is an apocalyptic number.

22530139 is a deficient number, since it is larger than the sum of its proper divisors (1).

22530139 is an equidigital number, since it uses as much as digits as its factorization.

22530139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 22530139 is about 4746.5923566281. The cubic root of 22530139 is about 282.4368052448.

The spelling of 22530139 in words is "twenty-two million, five hundred thirty thousand, one hundred thirty-nine".