17394139 has 8 divisors (see below), whose sum is σ = 20925440. Its totient is φ = 14124456.

The previous prime is 17394133. The next prime is 17394163. The reversal of 17394139 is 93149371.

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 17394139 - 2⁹ = 17393627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17394098 and 17394107.

It is not an unprimeable number, because it can be changed into a prime (17394133) 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, 65259 + ... + 65524.

It is an arithmetic number, because the mean of its divisors is an integer number (2615680).

Almost surely, 2^17394139 is an apocalyptic number.

17394139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

17394139 is a deficient number, since it is larger than the sum of its proper divisors (3531301).

17394139 is a wasteful number, since it uses less digits than its factorization.

17394139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130809.

The product of its digits is 20412, while the sum is 37.

The square root of 17394139 is about 4170.6281301502. The cubic root of 17394139 is about 259.1001386753.

The spelling of 17394139 in words is "seventeen million, three hundred ninety-four thousand, one hundred thirty-nine".