22534231 has 4 divisors (see below), whose sum is σ = 23859792. Its totient is φ = 21208672.

The previous prime is 22534229. The next prime is 22534243. The reversal of 22534231 is 13243522.

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 22534231 - 2¹ = 22534229 is a prime.

It is a super-2 number, since 2×22534231² = 1015583133522722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22534271) 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, 662755 + ... + 662788.

It is an arithmetic number, because the mean of its divisors is an integer number (5964948).

Almost surely, 2^22534231 is an apocalyptic number.

22534231 is a deficient number, since it is larger than the sum of its proper divisors (1325561).

22534231 is a wasteful number, since it uses less digits than its factorization.

22534231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325560.

The product of its digits is 1440, while the sum is 22.

The square root of 22534231 is about 4747.0233831318. The cubic root of 22534231 is about 282.4539032521.

Adding to 22534231 its reverse (13243522), we get a palindrome (35777753).

The spelling of 22534231 in words is "twenty-two million, five hundred thirty-four thousand, two hundred thirty-one".