22132309 has 2 divisors, whose sum is σ = 22132310. Its totient is φ = 22132308.

The previous prime is 22132301. The next prime is 22132339. The reversal of 22132309 is 90323122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11222500 + 10909809 = 3350^2 + 3303^2 .

It is a cyclic number.

It is not a de Polignac number, because 22132309 - 2³ = 22132301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22132309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22132301) 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, 11066154 + 11066155.

It is an arithmetic number, because the mean of its divisors is an integer number (11066155).

Almost surely, 2^22132309 is an apocalyptic number.

It is an amenable number.

22132309 is a deficient number, since it is larger than the sum of its proper divisors (1).

22132309 is an equidigital number, since it uses as much as digits as its factorization.

22132309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 22132309 is about 4704.4988043361. The cubic root of 22132309 is about 280.7645304735.

The spelling of 22132309 in words is "twenty-two million, one hundred thirty-two thousand, three hundred nine".