22157273 has 8 divisors (see below), whose sum is σ = 23859360. Its totient is φ = 20499520.

The previous prime is 22157269. The next prime is 22157293. The reversal of 22157273 is 37275122.

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

It is a cyclic number.

It is not a de Polignac number, because 22157273 - 2² = 22157269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22157263) 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 in 7 ways as a sum of consecutive naturals, for example, 10043 + ... + 12048.

It is an arithmetic number, because the mean of its divisors is an integer number (2982420).

Almost surely, 2^22157273 is an apocalyptic number.

It is an amenable number.

22157273 is a deficient number, since it is larger than the sum of its proper divisors (1702087).

22157273 is a wasteful number, since it uses less digits than its factorization.

22157273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22167.

The product of its digits is 5880, while the sum is 29.

The square root of 22157273 is about 4707.1512616444. The cubic root of 22157273 is about 280.8700530098.

The spelling of 22157273 in words is "twenty-two million, one hundred fifty-seven thousand, two hundred seventy-three".