22205139 has 8 divisors (see below), whose sum is σ = 32298432. Its totient is φ = 13457640.

The previous prime is 22205137. The next prime is 22205177. The reversal of 22205139 is 93150222.

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

It is not a de Polignac number, because 22205139 - 2¹ = 22205137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22205137) 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 7 ways as a sum of consecutive naturals, for example, 336409 + ... + 336474.

It is an arithmetic number, because the mean of its divisors is an integer number (4037304).

Almost surely, 2^22205139 is an apocalyptic number.

22205139 is a deficient number, since it is larger than the sum of its proper divisors (10093293).

22205139 is a wasteful number, since it uses less digits than its factorization.

22205139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672897.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 22205139 is about 4712.2329102030. The cubic root of 22205139 is about 281.0721605603.

The spelling of 22205139 in words is "twenty-two million, two hundred five thousand, one hundred thirty-nine".