22951399 has 2 divisors, whose sum is σ = 22951400. Its totient is φ = 22951398.

The previous prime is 22951381. The next prime is 22951421. The reversal of 22951399 is 99315922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22951399 - 2⁹ = 22950887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22951339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11475699 + 11475700.

It is an arithmetic number, because the mean of its divisors is an integer number (11475700).

Almost surely, 2^22951399 is an apocalyptic number.

22951399 is a deficient number, since it is larger than the sum of its proper divisors (1).

22951399 is an equidigital number, since it uses as much as digits as its factorization.

22951399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 40.

The square root of 22951399 is about 4790.7618392068. The cubic root of 22951399 is about 284.1862454535.

The spelling of 22951399 in words is "twenty-two million, nine hundred fifty-one thousand, three hundred ninety-nine".