13694138 has 8 divisors (see below), whose sum is σ = 20592660. Its totient is φ = 6829920.

The previous prime is 13694113. The next prime is 13694179. The reversal of 13694138 is 83149631.

It can be written as a sum of positive squares in 2 ways, for example, as 9840769 + 3853369 = 3137^2 + 1963^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13694098 and 13694107.

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, 7553 + ... + 9188.

Almost surely, 2^13694138 is an apocalyptic number.

13694138 is a deficient number, since it is larger than the sum of its proper divisors (6898522).

13694138 is a wasteful number, since it uses less digits than its factorization.

13694138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17152.

The product of its digits is 15552, while the sum is 35.

The square root of 13694138 is about 3700.5591469398. The cubic root of 13694138 is about 239.2461182018.

The spelling of 13694138 in words is "thirteen million, six hundred ninety-four thousand, one hundred thirty-eight".