22097345 has 4 divisors (see below), whose sum is σ = 26516820. Its totient is φ = 17677872.

The previous prime is 22097291. The next prime is 22097351. The reversal of 22097345 is 54379022.

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 10042561 + 12054784 = 3169^2 + 3472^2 .

It is a cyclic number.

It is not a de Polignac number, because 22097345 - 2¹² = 22093249 is a prime.

It is an unprimeable number.

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, 2209730 + ... + 2209739.

It is an arithmetic number, because the mean of its divisors is an integer number (6629205).

Almost surely, 2^22097345 is an apocalyptic number.

It is an amenable number.

22097345 is a deficient number, since it is larger than the sum of its proper divisors (4419475).

22097345 is an equidigital number, since it uses as much as digits as its factorization.

22097345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419474.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 22097345 is about 4700.7813180364. The cubic root of 22097345 is about 280.6166045772.

The spelling of 22097345 in words is "twenty-two million, ninety-seven thousand, three hundred forty-five".