22617139 has 2 divisors, whose sum is σ = 22617140. Its totient is φ = 22617138.

The previous prime is 22617137. The next prime is 22617143. The reversal of 22617139 is 93171622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22617139 - 2¹ = 22617137 is a prime.

Together with 22617137, 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 22617139.

It is not a weakly prime, because it can be changed into another prime (22617137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11308569 + 11308570.

It is an arithmetic number, because the mean of its divisors is an integer number (11308570).

Almost surely, 2^22617139 is an apocalyptic number.

22617139 is a deficient number, since it is larger than the sum of its proper divisors (1).

22617139 is an equidigital number, since it uses as much as digits as its factorization.

22617139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 22617139 is about 4755.7479958467. The cubic root of 22617139 is about 282.7998809973.

The spelling of 22617139 in words is "twenty-two million, six hundred seventeen thousand, one hundred thirty-nine".