22115659 has 4 divisors (see below), whose sum is σ = 22130416. Its totient is φ = 22100904.

The previous prime is 22115651. The next prime is 22115663. The reversal of 22115659 is 95651122.

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 22115659 - 2³ = 22115651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22115659.

It is not an unprimeable number, because it can be changed into a prime (22115651) 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 3 ways as a sum of consecutive naturals, for example, 4839 + ... + 8224.

It is an arithmetic number, because the mean of its divisors is an integer number (5532604).

Almost surely, 2^22115659 is an apocalyptic number.

22115659 is a deficient number, since it is larger than the sum of its proper divisors (14757).

22115659 is a wasteful number, since it uses less digits than its factorization.

22115659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14756.

The product of its digits is 5400, while the sum is 31.

The square root of 22115659 is about 4702.7288886348. The cubic root of 22115659 is about 280.6941070008.

The spelling of 22115659 in words is "twenty-two million, one hundred fifteen thousand, six hundred fifty-nine".