22015159 has 4 divisors (see below), whose sum is σ = 22046920. Its totient is φ = 21983400.

The previous prime is 22015157. The next prime is 22015207. The reversal of 22015159 is 95151022.

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 22015159 - 2¹ = 22015157 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 (22015151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14817 + ... + 16234.

It is an arithmetic number, because the mean of its divisors is an integer number (5511730).

Almost surely, 2^22015159 is an apocalyptic number.

22015159 is a deficient number, since it is larger than the sum of its proper divisors (31761).

22015159 is an equidigital number, since it uses as much as digits as its factorization.

22015159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31760.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 22015159 is about 4692.0314363823. The cubic root of 22015159 is about 280.2682760382.

The spelling of 22015159 in words is "twenty-two million, fifteen thousand, one hundred fifty-nine".