22745017 has 4 divisors (see below), whose sum is σ = 22754560. Its totient is φ = 22735476.

The previous prime is 22744991. The next prime is 22745027. The reversal of 22745017 is 71054722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22745017 - 2¹¹ = 22742969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22745027) 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, 2188 + ... + 7090.

It is an arithmetic number, because the mean of its divisors is an integer number (5688640).

Almost surely, 2^22745017 is an apocalyptic number.

It is an amenable number.

22745017 is a deficient number, since it is larger than the sum of its proper divisors (9543).

22745017 is an equidigital number, since it uses as much as digits as its factorization.

22745017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9542.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 22745017 is about 4769.1736181439. The cubic root of 22745017 is about 283.3318660439.

Adding to 22745017 its reverse (71054722), we get a palindrome (93799739).

The spelling of 22745017 in words is "twenty-two million, seven hundred forty-five thousand, seventeen".