22245017 has 2 divisors, whose sum is σ = 22245018. Its totient is φ = 22245016.

The previous prime is 22244941. The next prime is 22245019. The reversal of 22245017 is 71054222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19044496 + 3200521 = 4364^2 + 1789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22245017 is a prime.

Together with 22245019, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22244983 and 22245001.

It is not a weakly prime, because it can be changed into another prime (22245019) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11122508 + 11122509.

It is an arithmetic number, because the mean of its divisors is an integer number (11122509).

Almost surely, 2^22245017 is an apocalyptic number.

It is an amenable number.

22245017 is a deficient number, since it is larger than the sum of its proper divisors (1).

22245017 is an equidigital number, since it uses as much as digits as its factorization.

22245017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 22245017 is about 4716.4623395083. The cubic root of 22245017 is about 281.2403182182.

Adding to 22245017 its reverse (71054222), we get a palindrome (93299239).

The spelling of 22245017 in words is "twenty-two million, two hundred forty-five thousand, seventeen".