22921351 has 2 divisors, whose sum is σ = 22921352. Its totient is φ = 22921350.

The previous prime is 22921331. The next prime is 22921361. The reversal of 22921351 is 15312922.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22921351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22921331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11460675 + 11460676.

It is an arithmetic number, because the mean of its divisors is an integer number (11460676).

Almost surely, 2^22921351 is an apocalyptic number.

22921351 is a deficient number, since it is larger than the sum of its proper divisors (1).

22921351 is an equidigital number, since it uses as much as digits as its factorization.

22921351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

The square root of 22921351 is about 4787.6247764419. The cubic root of 22921351 is about 284.0621722973.

The spelling of 22921351 in words is "twenty-two million, nine hundred twenty-one thousand, three hundred fifty-one".