17139811 has 6 divisors (see below), whose sum is σ = 18559860. Its totient is φ = 15821208.

The previous prime is 17139809. The next prime is 17139821. The reversal of 17139811 is 11893171.

It is not a de Polignac number, because 17139811 - 2¹ = 17139809 is a prime.

It is a super-2 number, since 2×17139811² = 587546242231442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17139821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50541 + ... + 50878.

It is an arithmetic number, because the mean of its divisors is an integer number (3093310).

Almost surely, 2^17139811 is an apocalyptic number.

17139811 is a deficient number, since it is larger than the sum of its proper divisors (1420049).

17139811 is a wasteful number, since it uses less digits than its factorization.

17139811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101445 (or 101432 counting only the distinct ones).

The product of its digits is 1512, while the sum is 31.

The square root of 17139811 is about 4140.0254830134. The cubic root of 17139811 is about 257.8311245878.

The spelling of 17139811 in words is "seventeen million, one hundred thirty-nine thousand, eight hundred eleven".