23022451 has 4 divisors (see below), whose sum is σ = 23046192. Its totient is φ = 22998712.

The previous prime is 23022413. The next prime is 23022463. The reversal of 23022451 is 15422032.

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 23022451 - 2²¹ = 20925299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23022401) 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, 10351 + ... + 12376.

It is an arithmetic number, because the mean of its divisors is an integer number (5761548).

Almost surely, 2^23022451 is an apocalyptic number.

23022451 is a deficient number, since it is larger than the sum of its proper divisors (23741).

23022451 is a wasteful number, since it uses less digits than its factorization.

23022451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23740.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 23022451 is about 4798.1716309444. The cubic root of 23022451 is about 284.4792007305.

Adding to 23022451 its reverse (15422032), we get a palindrome (38444483).

It can be divided in two parts, 2302 and 2451, that added together give a triangular number (4753 = T₉₇).

The spelling of 23022451 in words is "twenty-three million, twenty-two thousand, four hundred fifty-one".