22534009 has 9 divisors (see below), whose sum is σ = 23253871. Its totient is φ = 21836200.

The previous prime is 22533983. The next prime is 22534013. The reversal of 22534009 is 90043522.

It is a happy number.

The square root of 22534009 is 4747.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 21650409 + 883600 = 4653^2 + 940^2 .

It is not a de Polignac number, because 22534009 - 2¹³ = 22525817 is a prime.

It is a super-2 number, since 2×22534009² = 1015563123224162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22534079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 223059 + ... + 223159.

Almost surely, 2^22534009 is an apocalyptic number.

22534009 is the 4747-th square number.

22534009 is the 2374-th centered octagonal number.

It is an amenable number.

22534009 is a deficient number, since it is larger than the sum of its proper divisors (719862).

22534009 is an frugal number, since it uses more digits than its factorization.

22534009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The cubic root of 22534009 is about 282.4529757007.

Multiplying 22534009 by its sum of digits (25), we get a square (563350225 = 23735²).

The spelling of 22534009 in words is "twenty-two million, five hundred thirty-four thousand, nine".