22138117 has 8 divisors (see below), whose sum is σ = 22379000. Its totient is φ = 21898944.

The previous prime is 22138093. The next prime is 22138133. The reversal of 22138117 is 71183122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6974881 + 15163236 = 2641^2 + 3894^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22138117 - 2⁷ = 22137989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22138091 and 22138100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22138147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63259 + ... + 63607.

It is an arithmetic number, because the mean of its divisors is an integer number (2797375).

Almost surely, 2^22138117 is an apocalyptic number.

22138117 is the 2717-th hex number.

It is an amenable number.

22138117 is a deficient number, since it is larger than the sum of its proper divisors (240883).

22138117 is a wasteful number, since it uses less digits than its factorization.

22138117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855.

The product of its digits is 672, while the sum is 25.

The square root of 22138117 is about 4705.1160453277. The cubic root of 22138117 is about 280.7890879018.

The spelling of 22138117 in words is "twenty-two million, one hundred thirty-eight thousand, one hundred seventeen".