22148305 has 8 divisors (see below), whose sum is σ = 27028800. Its totient is φ = 17418096.

The previous prime is 22148299. The next prime is 22148309. The reversal of 22148305 is 50384122.

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 22148305 - 2⁷ = 22148177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22148305.

It is not an unprimeable number, because it can be changed into a prime (22148309) 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, 37245 + ... + 37834.

It is an arithmetic number, because the mean of its divisors is an integer number (3378600).

Almost surely, 2^22148305 is an apocalyptic number.

It is an amenable number.

22148305 is a deficient number, since it is larger than the sum of its proper divisors (4880495).

22148305 is an equidigital number, since it uses as much as digits as its factorization.

22148305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75143.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 22148305 is about 4706.1985720962. The cubic root of 22148305 is about 280.8321545051.

The spelling of 22148305 in words is "twenty-two million, one hundred forty-eight thousand, three hundred five".