22005313 has 8 divisors (see below), whose sum is σ = 24071040. Its totient is φ = 19950480.

The previous prime is 22005311. The next prime is 22005317. The reversal of 22005313 is 31350022.

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

It is not a de Polignac number, because 22005313 - 2¹ = 22005311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22005311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1848 + ... + 6886.

It is an arithmetic number, because the mean of its divisors is an integer number (3008880).

Almost surely, 2^22005313 is an apocalyptic number.

It is an amenable number.

22005313 is a deficient number, since it is larger than the sum of its proper divisors (2065727).

22005313 is a wasteful number, since it uses less digits than its factorization.

22005313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5447.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 22005313 is about 4690.9820933361. The cubic root of 22005313 is about 280.2264876666.

Adding to 22005313 its reverse (31350022), we get a palindrome (53355335).

The spelling of 22005313 in words is "twenty-two million, five thousand, three hundred thirteen".