22456091 has 4 divisors (see below), whose sum is σ = 25664112. Its totient is φ = 19248072.

The previous prime is 22456079. The next prime is 22456103. The reversal of 22456091 is 19065422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19065422 = 2 ⋅9532711.

It is an interprime number because it is at equal distance from previous prime (22456079) and next prime (22456103).

It is a cyclic number.

It is not a de Polignac number, because 22456091 - 2²² = 18261787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22456001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1604000 + ... + 1604013.

It is an arithmetic number, because the mean of its divisors is an integer number (6416028).

Almost surely, 2^22456091 is an apocalyptic number.

22456091 is a deficient number, since it is larger than the sum of its proper divisors (3208021).

22456091 is an equidigital number, since it uses as much as digits as its factorization.

22456091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208020.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 22456091 is about 4738.7858149530. The cubic root of 22456091 is about 282.1270448467.

The spelling of 22456091 in words is "twenty-two million, four hundred fifty-six thousand, ninety-one".