22298159 has 4 divisors (see below), whose sum is σ = 24013416. Its totient is φ = 20582904.

The previous prime is 22298141. The next prime is 22298167. The reversal of 22298159 is 95189222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22298159 - 2²⁰ = 21249583 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 (22298119) 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, 857609 + ... + 857634.

It is an arithmetic number, because the mean of its divisors is an integer number (6003354).

Almost surely, 2^22298159 is an apocalyptic number.

22298159 is a deficient number, since it is larger than the sum of its proper divisors (1715257).

22298159 is a wasteful number, since it uses less digits than its factorization.

22298159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715256.

The product of its digits is 25920, while the sum is 38.

The square root of 22298159 is about 4722.0926505099. The cubic root of 22298159 is about 281.4640954851.

The spelling of 22298159 in words is "twenty-two million, two hundred ninety-eight thousand, one hundred fifty-nine".