1115171713 has 8 divisors (see below), whose sum is σ = 1155076200. Its totient is φ = 1075363968.

The previous prime is 1115171699. The next prime is 1115171719. The reversal of 1115171713 is 3171715111.

It can be written as a sum of positive squares in 4 ways, for example, as 789441409 + 325730304 = 28097^2 + 18048^2 .

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 1115171713 - 2⁹ = 1115171201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115171719) 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, 306 + ... + 47227.

It is an arithmetic number, because the mean of its divisors is an integer number (144384525).

Almost surely, 2^1115171713 is an apocalyptic number.

It is an amenable number.

1115171713 is a deficient number, since it is larger than the sum of its proper divisors (39904487).

1115171713 is an equidigital number, since it uses as much as digits as its factorization.

1115171713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48371.

The product of its digits is 735, while the sum is 28.

The square root of 1115171713 is about 33394.1868144742. The cubic root of 1115171713 is about 1037.0043581756.

Adding to 1115171713 its reverse (3171715111), we get a palindrome (4286886824).

The spelling of 1115171713 in words is "one billion, one hundred fifteen million, one hundred seventy-one thousand, seven hundred thirteen".