22612745 has 4 divisors (see below), whose sum is σ = 27135300. Its totient is φ = 18090192.

The previous prime is 22612739. The next prime is 22612763. The reversal of 22612745 is 54721622.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14341369 + 8271376 = 3787^2 + 2876^2 .

It is a cyclic number.

It is not a de Polignac number, because 22612745 - 2¹⁴ = 22596361 is a prime.

It is a super-2 number, since 2×22612745² = 1022672472870050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261270 + ... + 2261279.

It is an arithmetic number, because the mean of its divisors is an integer number (6783825).

Almost surely, 2^22612745 is an apocalyptic number.

It is an amenable number.

22612745 is a deficient number, since it is larger than the sum of its proper divisors (4522555).

22612745 is an equidigital number, since it uses as much as digits as its factorization.

22612745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522554.

The product of its digits is 6720, while the sum is 29.

The square root of 22612745 is about 4755.2860061199. The cubic root of 22612745 is about 282.7815659317.

The spelling of 22612745 in words is "twenty-two million, six hundred twelve thousand, seven hundred forty-five".