117171556 has 12 divisors (see below), whose sum is σ = 215842480. Its totient is φ = 55502280.

The previous prime is 117171553. The next prime is 117171557. The reversal of 117171556 is 655171711.

It is a happy number.

It is a super-2 number, since 2×117171556² = 27458347070922272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (117171553) 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 3 ways as a sum of consecutive naturals, for example, 770790 + ... + 770941.

Almost surely, 2^117171556 is an apocalyptic number.

It is an amenable number.

117171556 is a deficient number, since it is larger than the sum of its proper divisors (98670924).

117171556 is a wasteful number, since it uses less digits than its factorization.

117171556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541754 (or 1541752 counting only the distinct ones).

The product of its digits is 7350, while the sum is 34.

The square root of 117171556 is about 10824.5811004399. The cubic root of 117171556 is about 489.3362608419.

It can be divided in two parts, 1171 and 71556, that added together give a palindrome (72727).

The spelling of 117171556 in words is "one hundred seventeen million, one hundred seventy-one thousand, five hundred fifty-six".