22921135 has 4 divisors (see below), whose sum is σ = 27505368. Its totient is φ = 18336904.

The previous prime is 22921127. The next prime is 22921153. The reversal of 22921135 is 53112922.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22921135 - 2³ = 22921127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2292109 + ... + 2292118.

It is an arithmetic number, because the mean of its divisors is an integer number (6876342).

Almost surely, 2^22921135 is an apocalyptic number.

22921135 is a deficient number, since it is larger than the sum of its proper divisors (4584233).

22921135 is an equidigital number, since it uses as much as digits as its factorization.

22921135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584232.

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

The square root of 22921135 is about 4787.6022182299. The cubic root of 22921135 is about 284.0612800052.

The spelling of 22921135 in words is "twenty-two million, nine hundred twenty-one thousand, one hundred thirty-five".