22190297 has 2 divisors, whose sum is σ = 22190298. Its totient is φ = 22190296.

The previous prime is 22190261. The next prime is 22190351. The reversal of 22190297 is 79209122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17606416 + 4583881 = 4196^2 + 2141^2 .

It is a cyclic number.

It is not a de Polignac number, because 22190297 - 2¹² = 22186201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22190227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11095148 + 11095149.

It is an arithmetic number, because the mean of its divisors is an integer number (11095149).

Almost surely, 2^22190297 is an apocalyptic number.

It is an amenable number.

22190297 is a deficient number, since it is larger than the sum of its proper divisors (1).

22190297 is an equidigital number, since it uses as much as digits as its factorization.

22190297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 22190297 is about 4710.6578096907. The cubic root of 22190297 is about 281.0095233661.

The spelling of 22190297 in words is "twenty-two million, one hundred ninety thousand, two hundred ninety-seven".