22162361 has 8 divisors (see below), whose sum is σ = 23903880. Its totient is φ = 20426112.

The previous prime is 22162331. The next prime is 22162367. The reversal of 22162361 is 16326122.

It can be written as a sum of positive squares in 4 ways, for example, as 72361 + 22090000 = 269^2 + 4700^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22162361 - 2²² = 17968057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22162367) 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 7 ways as a sum of consecutive naturals, for example, 14795 + ... + 16223.

It is an arithmetic number, because the mean of its divisors is an integer number (2987985).

Almost surely, 2^22162361 is an apocalyptic number.

It is an amenable number.

22162361 is a deficient number, since it is larger than the sum of its proper divisors (1741519).

22162361 is a wasteful number, since it uses less digits than its factorization.

22162361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2635.

The product of its digits is 864, while the sum is 23.

The square root of 22162361 is about 4707.6916848919. The cubic root of 22162361 is about 280.8915502018.

Adding to 22162361 its reverse (16326122), we get a palindrome (38488483).

The spelling of 22162361 in words is "twenty-two million, one hundred sixty-two thousand, three hundred sixty-one".