22190159 has 4 divisors (see below), whose sum is σ = 22225104. Its totient is φ = 22155216.

The previous prime is 22190131. The next prime is 22190167. The reversal of 22190159 is 95109122.

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 22190159 - 2¹² = 22186063 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 (22190059) 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, 16502 + ... + 17795.

It is an arithmetic number, because the mean of its divisors is an integer number (5556276).

Almost surely, 2^22190159 is an apocalyptic number.

22190159 is a deficient number, since it is larger than the sum of its proper divisors (34945).

22190159 is an equidigital number, since it uses as much as digits as its factorization.

22190159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34944.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 22190159 is about 4710.6431620321. The cubic root of 22190159 is about 281.0089408384.

The spelling of 22190159 in words is "twenty-two million, one hundred ninety thousand, one hundred fifty-nine".