17071121 has 8 divisors (see below), whose sum is σ = 17357544. Its totient is φ = 16787200.

The previous prime is 17071099. The next prime is 17071147. The reversal of 17071121 is 12117071.

It can be written as a sum of positive squares in 4 ways, for example, as 14714896 + 2356225 = 3836^2 + 1535^2 .

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 17071121 - 2⁶ = 17071057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17071093 and 17071102.

It is not an unprimeable number, because it can be changed into a prime (17071181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16985 + ... + 17961.

It is an arithmetic number, because the mean of its divisors is an integer number (2169693).

Almost surely, 2^17071121 is an apocalyptic number.

It is an amenable number.

17071121 is a deficient number, since it is larger than the sum of its proper divisors (286423).

17071121 is a wasteful number, since it uses less digits than its factorization.

17071121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251.

The product of its (nonzero) digits is 98, while the sum is 20.

The square root of 17071121 is about 4131.7213119958. The cubic root of 17071121 is about 257.4862329649.

Adding to 17071121 its reverse (12117071), we get a palindrome (29188192).

The spelling of 17071121 in words is "seventeen million, seventy-one thousand, one hundred twenty-one".