17289357121 has 3 divisors (see below), whose sum is σ = 17289488611. Its totient is φ = 17289225632.

The previous prime is 17289357061. The next prime is 17289357143. The reversal of 17289357121 is 12175398271.

The square root of 17289357121 is 131489.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1524043521 + 15765313600 = 39039^2 + 125560^2 .

It is not a de Polignac number, because 17289357121 - 2²³ = 17280968513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17289357181) 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 2 ways as a sum of consecutive naturals, for example, 65745 + ... + 197233.

Almost surely, 2^17289357121 is an apocalyptic number.

17289357121 is the 131489-th square number.

17289357121 is the 65745-th centered octagonal number.

It is an amenable number.

17289357121 is a deficient number, since it is larger than the sum of its proper divisors (131490).

17289357121 is an frugal number, since it uses more digits than its factorization.

17289357121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262978 (or 131489 counting only the distinct ones).

The product of its digits is 211680, while the sum is 46.

The spelling of 17289357121 in words is "seventeen billion, two hundred eighty-nine million, three hundred fifty-seven thousand, one hundred twenty-one".