22097045 has 4 divisors (see below), whose sum is σ = 26516460. Its totient is φ = 17677632.

The previous prime is 22097041. The next prime is 22097051. The reversal of 22097045 is 54079022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54079022 = 2 ⋅27039511.

It can be written as a sum of positive squares in 2 ways, for example, as 16834609 + 5262436 = 4103^2 + 2294^2 .

It is a cyclic number.

It is not a de Polignac number, because 22097045 - 2² = 22097041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22096999 and 22097017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22097041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2209700 + ... + 2209709.

It is an arithmetic number, because the mean of its divisors is an integer number (6629115).

Almost surely, 2^22097045 is an apocalyptic number.

It is an amenable number.

22097045 is a deficient number, since it is larger than the sum of its proper divisors (4419415).

22097045 is an equidigital number, since it uses as much as digits as its factorization.

22097045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419414.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 22097045 is about 4700.7494083391. The cubic root of 22097045 is about 280.6153346605.

The spelling of 22097045 in words is "twenty-two million, ninety-seven thousand, forty-five".