22105965 has 16 divisors (see below), whose sum is σ = 40422528. Its totient is φ = 10105536.

The previous prime is 22105931. The next prime is 22105969. The reversal of 22105965 is 56950122.

It is a happy number.

It is not a de Polignac number, because 22105965 - 2⁶ = 22105901 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22105969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105162 + ... + 105371.

It is an arithmetic number, because the mean of its divisors is an integer number (2526408).

Almost surely, 2^22105965 is an apocalyptic number.

It is an amenable number.

22105965 is a deficient number, since it is larger than the sum of its proper divisors (18316563).

22105965 is a wasteful number, since it uses less digits than its factorization.

22105965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210548.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 22105965 is about 4701.6980974963. The cubic root of 22105965 is about 280.6530886083.

The spelling of 22105965 in words is "twenty-two million, one hundred five thousand, nine hundred sixty-five".