115665222 has 8 divisors (see below), whose sum is σ = 231330456. Its totient is φ = 38555072.

The previous prime is 115665191. The next prime is 115665233. The reversal of 115665222 is 222566511.

It is a sphenic number, since it is the product of 3 distinct primes.

115665222 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 115665222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9638763 + ... + 9638774.

It is an arithmetic number, because the mean of its divisors is an integer number (28916307).

Almost surely, 2^115665222 is an apocalyptic number.

115665222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115665222 is a wasteful number, since it uses less digits than its factorization.

115665222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19277542.

The product of its digits is 7200, while the sum is 30.

The square root of 115665222 is about 10754.7767061897. The cubic root of 115665222 is about 487.2302739350.

The spelling of 115665222 in words is "one hundred fifteen million, six hundred sixty-five thousand, two hundred twenty-two".