22145327 has 2 divisors, whose sum is σ = 22145328. Its totient is φ = 22145326.

The previous prime is 22145323. The next prime is 22145363. The reversal of 22145327 is 72354122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22145327 - 2² = 22145323 is a prime.

It is a Chen prime.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 22145296 and 22145305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22145323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072663 + 11072664.

It is an arithmetic number, because the mean of its divisors is an integer number (11072664).

Almost surely, 2^22145327 is an apocalyptic number.

22145327 is a deficient number, since it is larger than the sum of its proper divisors (1).

22145327 is an equidigital number, since it uses as much as digits as its factorization.

22145327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 26.

The square root of 22145327 is about 4705.8821702206. The cubic root of 22145327 is about 280.8195673020.

Adding to 22145327 its reverse (72354122), we get a palindrome (94499449).

The spelling of 22145327 in words is "twenty-two million, one hundred forty-five thousand, three hundred twenty-seven".