13938118 has 8 divisors (see below), whose sum is σ = 20923848. Its totient is φ = 6963504.

The previous prime is 13938083. The next prime is 13938121. The reversal of 13938118 is 81183931.

It is a happy number.

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

It is a super-2 number, since 2×13938118² = 388542266763848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2005 + ... + 5647.

It is an arithmetic number, because the mean of its divisors is an integer number (2615481).

Almost surely, 2^13938118 is an apocalyptic number.

13938118 is a deficient number, since it is larger than the sum of its proper divisors (6985730).

13938118 is a wasteful number, since it uses less digits than its factorization.

13938118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558.

The product of its digits is 5184, while the sum is 34.

The square root of 13938118 is about 3733.3788985315. The cubic root of 13938118 is about 240.6585961524.

The spelling of 13938118 in words is "thirteen million, nine hundred thirty-eight thousand, one hundred eighteen".