19222145 has 8 divisors (see below), whose sum is σ = 23115456. Its totient is φ = 15345136.

The previous prime is 19222123. The next prime is 19222183. The reversal of 19222145 is 54122291.

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 19222145 - 2⁶ = 19222081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307 + ... + 6336.

It is an arithmetic number, because the mean of its divisors is an integer number (2889432).

Almost surely, 2^19222145 is an apocalyptic number.

It is an amenable number.

19222145 is a deficient number, since it is larger than the sum of its proper divisors (3893311).

19222145 is an equidigital number, since it uses as much as digits as its factorization.

19222145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8151.

The product of its digits is 1440, while the sum is 26.

The square root of 19222145 is about 4384.3066726679. The cubic root of 19222145 is about 267.8760890387.

The spelling of 19222145 in words is "nineteen million, two hundred twenty-two thousand, one hundred forty-five".