22057149 has 8 divisors (see below), whose sum is σ = 29495200. Its totient is φ = 14661936.

The previous prime is 22057103. The next prime is 22057163. The reversal of 22057149 is 94175022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22057149 - 2⁹ = 22056637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22057199) 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 in 7 ways as a sum of consecutive naturals, for example, 9487 + ... + 11580.

It is an arithmetic number, because the mean of its divisors is an integer number (3686900).

Almost surely, 2^22057149 is an apocalyptic number.

It is an amenable number.

22057149 is a deficient number, since it is larger than the sum of its proper divisors (7438051).

22057149 is a wasteful number, since it uses less digits than its factorization.

22057149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21419.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 22057149 is about 4696.5039124864. The cubic root of 22057149 is about 280.4463501665.

The spelling of 22057149 in words is "twenty-two million, fifty-seven thousand, one hundred forty-nine".