22147259 has 2 divisors, whose sum is σ = 22147260. Its totient is φ = 22147258.

The previous prime is 22147249. The next prime is 22147289. The reversal of 22147259 is 95274122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22147259 - 2⁸ = 22147003 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22147249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11073629 + 11073630.

It is an arithmetic number, because the mean of its divisors is an integer number (11073630).

Almost surely, 2^22147259 is an apocalyptic number.

22147259 is a deficient number, since it is larger than the sum of its proper divisors (1).

22147259 is an equidigital number, since it uses as much as digits as its factorization.

22147259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 22147259 is about 4706.0874407516. The cubic root of 22147259 is about 280.8277334737.

The spelling of 22147259 in words is "twenty-two million, one hundred forty-seven thousand, two hundred fifty-nine".