22461749 has 2 divisors, whose sum is σ = 22461750. Its totient is φ = 22461748.

The previous prime is 22461737. The next prime is 22461757. The reversal of 22461749 is 94716422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16459249 + 6002500 = 4057^2 + 2450^2 .

It is a cyclic number.

It is not a de Polignac number, because 22461749 - 2²⁴ = 5684533 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22461799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11230874 + 11230875.

It is an arithmetic number, because the mean of its divisors is an integer number (11230875).

Almost surely, 2^22461749 is an apocalyptic number.

It is an amenable number.

22461749 is a deficient number, since it is larger than the sum of its proper divisors (1).

22461749 is an equidigital number, since it uses as much as digits as its factorization.

22461749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 22461749 is about 4739.3827657196. The cubic root of 22461749 is about 282.1507376134.

The spelling of 22461749 in words is "twenty-two million, four hundred sixty-one thousand, seven hundred forty-nine".