23122091 has 8 divisors (see below), whose sum is σ = 24525504. Its totient is φ = 21723520.

The previous prime is 23122081. The next prime is 23122097. The reversal of 23122091 is 19022132.

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 23122091 - 2⁶ = 23122027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23122097) 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, 14741 + ... + 16233.

It is an arithmetic number, because the mean of its divisors is an integer number (3065688).

Almost surely, 2^23122091 is an apocalyptic number.

23122091 is a deficient number, since it is larger than the sum of its proper divisors (1403413).

23122091 is a wasteful number, since it uses less digits than its factorization.

23122091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 23122091 is about 4808.5435424877. The cubic root of 23122091 is about 284.8890139307.

It can be divided in two parts, 231 and 22091, that added together give a palindrome (22322).

The spelling of 23122091 in words is "twenty-three million, one hundred twenty-two thousand, ninety-one".