22196309 has 2 divisors, whose sum is σ = 22196310. Its totient is φ = 22196308.

The previous prime is 22196297. The next prime is 22196359. The reversal of 22196309 is 90369122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12802084 + 9394225 = 3578^2 + 3065^2 .

It is a cyclic number.

It is not a de Polignac number, because 22196309 - 2²⁰ = 21147733 is a prime.

It is a super-2 number, since 2×22196309² = 985352266446962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22196359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11098154 + 11098155.

It is an arithmetic number, because the mean of its divisors is an integer number (11098155).

Almost surely, 2^22196309 is an apocalyptic number.

It is an amenable number.

22196309 is a deficient number, since it is larger than the sum of its proper divisors (1).

22196309 is an equidigital number, since it uses as much as digits as its factorization.

22196309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 22196309 is about 4711.2958939128. The cubic root of 22196309 is about 281.0348989722.

The spelling of 22196309 in words is "twenty-two million, one hundred ninety-six thousand, three hundred nine".