22302139 has 2 divisors, whose sum is σ = 22302140. Its totient is φ = 22302138.

The previous prime is 22302109. The next prime is 22302151. The reversal of 22302139 is 93120322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22302139 - 2⁵ = 22302107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22302109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11151069 + 11151070.

It is an arithmetic number, because the mean of its divisors is an integer number (11151070).

Almost surely, 2^22302139 is an apocalyptic number.

22302139 is a deficient number, since it is larger than the sum of its proper divisors (1).

22302139 is an equidigital number, since it uses as much as digits as its factorization.

22302139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 22302139 is about 4722.5140550347. The cubic root of 22302139 is about 281.4808406711.

The spelling of 22302139 in words is "twenty-two million, three hundred two thousand, one hundred thirty-nine".