117171543 has 16 divisors (see below), whose sum is σ = 159022080. Its totient is φ = 76724736.

The previous prime is 117171533. The next prime is 117171553. The reversal of 117171543 is 345171711.

It is an interprime number because it is at equal distance from previous prime (117171533) and next prime (117171553).

It is not a de Polignac number, because 117171543 - 2⁵ = 117171511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117171543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117171503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95671 + ... + 96887.

It is an arithmetic number, because the mean of its divisors is an integer number (9938880).

Almost surely, 2^117171543 is an apocalyptic number.

117171543 is a deficient number, since it is larger than the sum of its proper divisors (41850537).

117171543 is a wasteful number, since it uses less digits than its factorization.

117171543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766.

The product of its digits is 2940, while the sum is 30.

The square root of 117171543 is about 10824.5804999547. The cubic root of 117171543 is about 489.3362427448.

The spelling of 117171543 in words is "one hundred seventeen million, one hundred seventy-one thousand, five hundred forty-three".