22399141 has 2 divisors, whose sum is σ = 22399142. Its totient is φ = 22399140.

The previous prime is 22399129. The next prime is 22399147. The reversal of 22399141 is 14199322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21252100 + 1147041 = 4610^2 + 1071^2 .

It is a cyclic number.

It is not a de Polignac number, because 22399141 - 2⁵ = 22399109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22399147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11199570 + 11199571.

It is an arithmetic number, because the mean of its divisors is an integer number (11199571).

Almost surely, 2^22399141 is an apocalyptic number.

It is an amenable number.

22399141 is a deficient number, since it is larger than the sum of its proper divisors (1).

22399141 is an equidigital number, since it uses as much as digits as its factorization.

22399141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 22399141 is about 4732.7730771716. The cubic root of 22399141 is about 281.8883458856. Note that the first 3 decimals are identical.

The spelling of 22399141 in words is "twenty-two million, three hundred ninety-nine thousand, one hundred forty-one".