22073185 has 4 divisors (see below), whose sum is σ = 26487828. Its totient is φ = 17658544.

The previous prime is 22073173. The next prime is 22073189. The reversal of 22073185 is 58137022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58137022 = 2 ⋅29068511.

It can be written as a sum of positive squares in 2 ways, for example, as 16842816 + 5230369 = 4104^2 + 2287^2 .

It is a cyclic number.

It is not a de Polignac number, because 22073185 - 2⁷ = 22073057 is a prime.

It is a super-4 number, since 4×22073185⁴ (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22073189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2207314 + ... + 2207323.

It is an arithmetic number, because the mean of its divisors is an integer number (6621957).

Almost surely, 2^22073185 is an apocalyptic number.

It is an amenable number.

22073185 is a deficient number, since it is larger than the sum of its proper divisors (4414643).

22073185 is an equidigital number, since it uses as much as digits as its factorization.

22073185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4414642.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 22073185 is about 4698.2108296670. The cubic root of 22073185 is about 280.5142971203.

The spelling of 22073185 in words is "twenty-two million, seventy-three thousand, one hundred eighty-five".