22165453 has 4 divisors (see below), whose sum is σ = 22188348. Its totient is φ = 22142560.

The previous prime is 22165447. The next prime is 22165459. The reversal of 22165453 is 35456122.

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

It is an interprime number because it is at equal distance from previous prime (22165447) and next prime (22165459).

It can be written as a sum of positive squares in 2 ways, for example, as 94249 + 22071204 = 307^2 + 4698^2 .

It is a cyclic number.

It is not a de Polignac number, because 22165453 - 2⁹ = 22164941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22165459) 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, 9928 + ... + 11953.

It is an arithmetic number, because the mean of its divisors is an integer number (5547087).

Almost surely, 2^22165453 is an apocalyptic number.

It is an amenable number.

22165453 is a deficient number, since it is larger than the sum of its proper divisors (22895).

22165453 is a wasteful number, since it uses less digits than its factorization.

22165453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22894.

The product of its digits is 7200, while the sum is 28.

The square root of 22165453 is about 4708.0200721747. The cubic root of 22165453 is about 280.9046125328.

The spelling of 22165453 in words is "twenty-two million, one hundred sixty-five thousand, four hundred fifty-three".