22652143 has 4 divisors (see below), whose sum is σ = 23984640. Its totient is φ = 21319648.

The previous prime is 22652137. The next prime is 22652153. The reversal of 22652143 is 34125622.

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 22652143 - 2²¹ = 20554991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22652153) 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, 666223 + ... + 666256.

It is an arithmetic number, because the mean of its divisors is an integer number (5996160).

Almost surely, 2^22652143 is an apocalyptic number.

22652143 is a deficient number, since it is larger than the sum of its proper divisors (1332497).

22652143 is a wasteful number, since it uses less digits than its factorization.

22652143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332496.

The product of its digits is 2880, while the sum is 25.

The square root of 22652143 is about 4759.4267511960. The cubic root of 22652143 is about 282.9456999791.

Adding to 22652143 its reverse (34125622), we get a palindrome (56777765).

The spelling of 22652143 in words is "twenty-two million, six hundred fifty-two thousand, one hundred forty-three".