22301749 has 2 divisors, whose sum is σ = 22301750. Its totient is φ = 22301748.

The previous prime is 22301717. The next prime is 22301753. The reversal of 22301749 is 94710322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22184100 + 117649 = 4710^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 22301749 - 2⁵ = 22301717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22301549) 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 as a sum of consecutive naturals, namely, 11150874 + 11150875.

It is an arithmetic number, because the mean of its divisors is an integer number (11150875).

Almost surely, 2^22301749 is an apocalyptic number.

It is an amenable number.

22301749 is a deficient number, since it is larger than the sum of its proper divisors (1).

22301749 is an equidigital number, since it uses as much as digits as its factorization.

22301749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 22301749 is about 4722.4727632883. The cubic root of 22301749 is about 281.4791998992.

The spelling of 22301749 in words is "twenty-two million, three hundred one thousand, seven hundred forty-nine".