22127849 has 2 divisors, whose sum is σ = 22127850. Its totient is φ = 22127848.

The previous prime is 22127797. The next prime is 22127873. The reversal of 22127849 is 94872122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19669225 + 2458624 = 4435^2 + 1568^2 .

It is a cyclic number.

It is not a de Polignac number, because 22127849 - 2¹² = 22123753 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22127879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11063924 + 11063925.

It is an arithmetic number, because the mean of its divisors is an integer number (11063925).

Almost surely, 2^22127849 is an apocalyptic number.

It is an amenable number.

22127849 is a deficient number, since it is larger than the sum of its proper divisors (1).

22127849 is an equidigital number, since it uses as much as digits as its factorization.

22127849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 22127849 is about 4704.0247660913. The cubic root of 22127849 is about 280.7456697523.

The spelling of 22127849 in words is "twenty-two million, one hundred twenty-seven thousand, eight hundred forty-nine".