17128138 has 8 divisors (see below), whose sum is σ = 25790688. Its totient is φ = 8531244.

The previous prime is 17128127. The next prime is 17128141. The reversal of 17128138 is 83182171.

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 2×17128138² = 586746222694088, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 15756 + ... + 16807.

It is an arithmetic number, because the mean of its divisors is an integer number (3223836).

Almost surely, 2^17128138 is an apocalyptic number.

17128138 is a deficient number, since it is larger than the sum of its proper divisors (8662550).

17128138 is a wasteful number, since it uses less digits than its factorization.

17128138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32828.

The product of its digits is 2688, while the sum is 31.

The square root of 17128138 is about 4138.6154689703. The cubic root of 17128138 is about 257.7725796751.

The spelling of 17128138 in words is "seventeen million, one hundred twenty-eight thousand, one hundred thirty-eight".