23022251 has 16 divisors (see below), whose sum is σ = 27316224. Its totient is φ = 18991584.

The previous prime is 23022239. The next prime is 23022257. The reversal of 23022251 is 15222032.

It is a cyclic number.

It is not a de Polignac number, because 23022251 - 2¹⁰ = 23021227 is a prime.

It is a super-2 number, since 2×23022251² = 1060048082214002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23022257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26246 + ... + 27108.

It is an arithmetic number, because the mean of its divisors is an integer number (1707264).

Almost surely, 2^23022251 is an apocalyptic number.

23022251 is a deficient number, since it is larger than the sum of its proper divisors (4293973).

23022251 is a wasteful number, since it uses less digits than its factorization.

23022251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 23022251 is about 4798.1507896272. The cubic root of 23022251 is about 284.4783769548.

Adding to 23022251 its reverse (15222032), we get a palindrome (38244283).

The spelling of 23022251 in words is "twenty-three million, twenty-two thousand, two hundred fifty-one".