22531469 has 4 divisors (see below), whose sum is σ = 22548000. Its totient is φ = 22514940.

The previous prime is 22531433. The next prime is 22531489. The reversal of 22531469 is 96413522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22531469 is a prime.

It is a super-2 number, since 2×22531469² = 1015334190595922, 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 (22531489) 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, 6017 + ... + 9014.

It is an arithmetic number, because the mean of its divisors is an integer number (5637000).

Almost surely, 2^22531469 is an apocalyptic number.

It is an amenable number.

22531469 is a deficient number, since it is larger than the sum of its proper divisors (16531).

22531469 is a wasteful number, since it uses less digits than its factorization.

22531469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16530.

The product of its digits is 12960, while the sum is 32.

The square root of 22531469 is about 4746.7324550684. The cubic root of 22531469 is about 282.4423627421.

The spelling of 22531469 in words is "twenty-two million, five hundred thirty-one thousand, four hundred sixty-nine".