22234531 has 4 divisors (see below), whose sum is σ = 24255864. Its totient is φ = 20213200.

The previous prime is 22234523. The next prime is 22234543. The reversal of 22234531 is 13543222.

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 22234531 - 2³ = 22234523 is a prime.

It is a super-2 number, since 2×22234531² = 988748737579922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22234571) 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, 1010650 + ... + 1010671.

It is an arithmetic number, because the mean of its divisors is an integer number (6063966).

Almost surely, 2^22234531 is an apocalyptic number.

22234531 is a deficient number, since it is larger than the sum of its proper divisors (2021333).

22234531 is a wasteful number, since it uses less digits than its factorization.

22234531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021332.

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

The square root of 22234531 is about 4715.3505702121. The cubic root of 22234531 is about 281.1961203126.

Adding to 22234531 its reverse (13543222), we get a palindrome (35777753).

The spelling of 22234531 in words is "twenty-two million, two hundred thirty-four thousand, five hundred thirty-one".