22146329 has 2 divisors, whose sum is σ = 22146330. Its totient is φ = 22146328.

The previous prime is 22146287. The next prime is 22146331. The reversal of 22146329 is 92364122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15618304 + 6528025 = 3952^2 + 2555^2 .

It is a cyclic number.

It is not a de Polignac number, because 22146329 - 2²⁰ = 21097753 is a prime.

Together with 22146331, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22146379) 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, 11073164 + 11073165.

It is an arithmetic number, because the mean of its divisors is an integer number (11073165).

Almost surely, 2^22146329 is an apocalyptic number.

It is an amenable number.

22146329 is a deficient number, since it is larger than the sum of its proper divisors (1).

22146329 is an equidigital number, since it uses as much as digits as its factorization.

22146329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 22146329 is about 4705.9886315205. The cubic root of 22146329 is about 280.8238026118.

The spelling of 22146329 in words is "twenty-two million, one hundred forty-six thousand, three hundred twenty-nine".