22312159 has 4 divisors (see below), whose sum is σ = 22856400. Its totient is φ = 21767920.

The previous prime is 22312127. The next prime is 22312163. The reversal of 22312159 is 95121322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95121322 = 2 ⋅47560661.

It is a cyclic number.

It is not a de Polignac number, because 22312159 - 2⁵ = 22312127 is a prime.

It is a super-3 number, since 3×22312159³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22312259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272059 + ... + 272140.

It is an arithmetic number, because the mean of its divisors is an integer number (5714100).

Almost surely, 2^22312159 is an apocalyptic number.

22312159 is a deficient number, since it is larger than the sum of its proper divisors (544241).

22312159 is an equidigital number, since it uses as much as digits as its factorization.

22312159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544240.

The product of its digits is 1080, while the sum is 25.

The square root of 22312159 is about 4723.5748115172. The cubic root of 22312159 is about 281.5229893298.

The spelling of 22312159 in words is "twenty-two million, three hundred twelve thousand, one hundred fifty-nine".