22145323 has 2 divisors, whose sum is σ = 22145324. Its totient is φ = 22145322.

The previous prime is 22145311. The next prime is 22145327. The reversal of 22145323 is 32354122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22145323 is a prime.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 22145294 and 22145303.

It is not a weakly prime, because it can be changed into another prime (22145327) 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 as a sum of consecutive naturals, namely, 11072661 + 11072662.

It is an arithmetic number, because the mean of its divisors is an integer number (11072662).

Almost surely, 2^22145323 is an apocalyptic number.

22145323 is a deficient number, since it is larger than the sum of its proper divisors (1).

22145323 is an equidigital number, since it uses as much as digits as its factorization.

22145323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 22.

The square root of 22145323 is about 4705.8817452205. The cubic root of 22145323 is about 280.8195503943.

Adding to 22145323 its reverse (32354122), we get a palindrome (54499445).

The spelling of 22145323 in words is "twenty-two million, one hundred forty-five thousand, three hundred twenty-three".