22004149 has 2 divisors, whose sum is σ = 22004150. Its totient is φ = 22004148.

The previous prime is 22004119. The next prime is 22004153. The reversal of 22004149 is 94140022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14303524 + 7700625 = 3782^2 + 2775^2 .

It is a cyclic number.

It is not a de Polignac number, because 22004149 - 2¹⁷ = 21873077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22004119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11002074 + 11002075.

It is an arithmetic number, because the mean of its divisors is an integer number (11002075).

Almost surely, 2^22004149 is an apocalyptic number.

It is an amenable number.

22004149 is a deficient number, since it is larger than the sum of its proper divisors (1).

22004149 is an equidigital number, since it uses as much as digits as its factorization.

22004149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 22004149 is about 4690.8580238587. The cubic root of 22004149 is about 280.2215465965.

The spelling of 22004149 in words is "twenty-two million, four thousand, one hundred forty-nine".