22115965 has 8 divisors (see below), whose sum is σ = 26666208. Its totient is φ = 17608080.

The previous prime is 22115959. The next prime is 22115983. The reversal of 22115965 is 56951122.

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

It is a de Polignac number, because none of the positive numbers 2^k-22115965 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9427 + ... + 11536.

It is an arithmetic number, because the mean of its divisors is an integer number (3333276).

Almost surely, 2^22115965 is an apocalyptic number.

It is an amenable number.

22115965 is a deficient number, since it is larger than the sum of its proper divisors (4550243).

22115965 is a wasteful number, since it uses less digits than its factorization.

22115965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21179.

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

The square root of 22115965 is about 4702.7614228238. The cubic root of 22115965 is about 280.6954015888.

The spelling of 22115965 in words is "twenty-two million, one hundred fifteen thousand, nine hundred sixty-five".