17139005 has 8 divisors (see below), whose sum is σ = 22148952. Its totient is φ = 12656448.

The previous prime is 17138959. The next prime is 17139037. The reversal of 17139005 is 50093171.

It can be written as a sum of positive squares in 4 ways, for example, as 139876 + 16999129 = 374^2 + 4123^2 .

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 17139005 - 2²⁴ = 361789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 131774 + ... + 131903.

It is an arithmetic number, because the mean of its divisors is an integer number (2768619).

Almost surely, 2^17139005 is an apocalyptic number.

It is an amenable number.

17139005 is a deficient number, since it is larger than the sum of its proper divisors (5009947).

17139005 is a wasteful number, since it uses less digits than its factorization.

17139005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263695.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 17139005 is about 4139.9281394730. The cubic root of 17139005 is about 257.8270830196.

The spelling of 17139005 in words is "seventeen million, one hundred thirty-nine thousand, five".