22148345 has 4 divisors (see below), whose sum is σ = 26578020. Its totient is φ = 17718672.

The previous prime is 22148341. The next prime is 22148359. The reversal of 22148345 is 54384122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4145296 + 18003049 = 2036^2 + 4243^2 .

It is a cyclic number.

It is not a de Polignac number, because 22148345 - 2² = 22148341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22148341) 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, 2214830 + ... + 2214839.

It is an arithmetic number, because the mean of its divisors is an integer number (6644505).

Almost surely, 2^22148345 is an apocalyptic number.

It is an amenable number.

22148345 is a deficient number, since it is larger than the sum of its proper divisors (4429675).

22148345 is an equidigital number, since it uses as much as digits as its factorization.

22148345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429674.

The product of its digits is 7680, while the sum is 29.

The square root of 22148345 is about 4706.2028218087. The cubic root of 22148345 is about 280.8323235667.

The spelling of 22148345 in words is "twenty-two million, one hundred forty-eight thousand, three hundred forty-five".