22003173 has 12 divisors (see below), whose sum is σ = 31827328. Its totient is φ = 14648040.

The previous prime is 22003129. The next prime is 22003181. The reversal of 22003173 is 37130022.

It is not a de Polignac number, because 22003173 - 2¹³ = 21994981 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 (22003103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7686 + ... + 10152.

Almost surely, 2^22003173 is an apocalyptic number.

It is an amenable number.

22003173 is a deficient number, since it is larger than the sum of its proper divisors (9824155).

22003173 is a wasteful number, since it uses less digits than its factorization.

22003173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464 (or 3461 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 22003173 is about 4690.7539905648. The cubic root of 22003173 is about 280.2174034343.

Adding to 22003173 its reverse (37130022), we get a palindrome (59133195).

The spelling of 22003173 in words is "twenty-two million, three thousand, one hundred seventy-three".