22125091 has 8 divisors (see below), whose sum is σ = 22961664. Its totient is φ = 21303240.

The previous prime is 22125083. The next prime is 22125113. The reversal of 22125091 is 19052122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22125091 - 2³ = 22125083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22128091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571 + ... + 6676.

It is an arithmetic number, because the mean of its divisors is an integer number (2870208).

Almost surely, 2^22125091 is an apocalyptic number.

22125091 is a deficient number, since it is larger than the sum of its proper divisors (836573).

22125091 is an equidigital number, since it uses as much as digits as its factorization.

22125091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7361.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 22125091 is about 4703.7316037376. The cubic root of 22125091 is about 280.7340052848.

The spelling of 22125091 in words is "twenty-two million, one hundred twenty-five thousand, ninety-one".