1171717161 has 8 divisors (see below), whose sum is σ = 1567010784. Its totient is φ = 778784160.

The previous prime is 1171717153. The next prime is 1171717193. The reversal of 1171717161 is 1617171711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1171717161 - 2³ = 1171717153 is a prime.

It is a super-2 number, since 2×1171717161² = 2745842210763799842, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1171717111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588996 + ... + 590981.

It is an arithmetic number, because the mean of its divisors is an integer number (195876348).

Almost surely, 2^1171717161 is an apocalyptic number.

It is an amenable number.

1171717161 is a deficient number, since it is larger than the sum of its proper divisors (395293623).

1171717161 is a wasteful number, since it uses less digits than its factorization.

1171717161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180311.

The product of its digits is 2058, while the sum is 33.

The square root of 1171717161 is about 34230.3543802865. The cubic root of 1171717161 is about 1054.2434956109.

Adding to 1171717161 its reverse (1617171711), we get a palindrome (2788888872).

The spelling of 1171717161 in words is "one billion, one hundred seventy-one million, seven hundred seventeen thousand, one hundred sixty-one".