22136293 has 4 divisors (see below), whose sum is σ = 22147020. Its totient is φ = 22125568.

The previous prime is 22136291. The next prime is 22136297. The reversal of 22136293 is 39263122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39263122 = 2 ⋅19631561.

It can be written as a sum of positive squares in 2 ways, for example, as 19201924 + 2934369 = 4382^2 + 1713^2 .

It is a cyclic number.

It is not a de Polignac number, because 22136293 - 2¹ = 22136291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22136291) 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 in 3 ways as a sum of consecutive naturals, for example, 1180 + ... + 6757.

It is an arithmetic number, because the mean of its divisors is an integer number (5536755).

Almost surely, 2^22136293 is an apocalyptic number.

It is an amenable number.

22136293 is a deficient number, since it is larger than the sum of its proper divisors (10727).

22136293 is an equidigital number, since it uses as much as digits as its factorization.

22136293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10726.

The product of its digits is 3888, while the sum is 28.

The square root of 22136293 is about 4704.9222097714. The cubic root of 22136293 is about 280.7813761143.

The spelling of 22136293 in words is "twenty-two million, one hundred thirty-six thousand, two hundred ninety-three".