22174549 has 2 divisors, whose sum is σ = 22174550. Its totient is φ = 22174548.

The previous prime is 22174513. The next prime is 22174583. The reversal of 22174549 is 94547122.

It is an a-pointer prime, because the next prime (22174583) can be obtained adding 22174549 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21622500 + 552049 = 4650^2 + 743^2 .

It is a cyclic number.

It is not a de Polignac number, because 22174549 - 2⁷ = 22174421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22174849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11087274 + 11087275.

It is an arithmetic number, because the mean of its divisors is an integer number (11087275).

Almost surely, 2^22174549 is an apocalyptic number.

It is an amenable number.

22174549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22174549 is an equidigital number, since it uses as much as digits as its factorization.

22174549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 22174549 is about 4708.9859842646. The cubic root of 22174549 is about 280.9430320638.

The spelling of 22174549 in words is "twenty-two million, one hundred seventy-four thousand, five hundred forty-nine".