117102161 has 8 divisors (see below), whose sum is σ = 128595648. Its totient is φ = 105750000.

The previous prime is 117102157. The next prime is 117102163. The reversal of 117102161 is 161201711.

It is a happy number.

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 117102161 - 2² = 117102157 is a prime.

It is a super-2 number, since 2×117102161² = 27425832221739842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117102163) 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, 33590 + ... + 36911.

It is an arithmetic number, because the mean of its divisors is an integer number (16074456).

Almost surely, 2^117102161 is an apocalyptic number.

117102161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

117102161 is a deficient number, since it is larger than the sum of its proper divisors (11493487).

117102161 is a wasteful number, since it uses less digits than its factorization.

117102161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70663.

The product of its (nonzero) digits is 84, while the sum is 20.

The square root of 117102161 is about 10821.3751898731. The cubic root of 117102161 is about 489.2396384278.

Adding to 117102161 its reverse (161201711), we get a palindrome (278303872).

The spelling of 117102161 in words is "one hundred seventeen million, one hundred two thousand, one hundred sixty-one".