117653543 has 4 divisors (see below), whose sum is σ = 134461200. Its totient is φ = 100845888.

The previous prime is 117653537. The next prime is 117653561. The reversal of 117653543 is 345356711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117653543 - 2⁸ = 117653287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117653513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8403818 + ... + 8403831.

It is an arithmetic number, because the mean of its divisors is an integer number (33615300).

Almost surely, 2^117653543 is an apocalyptic number.

117653543 is a deficient number, since it is larger than the sum of its proper divisors (16807657).

117653543 is an equidigital number, since it uses as much as digits as its factorization.

117653543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16807656.

The product of its digits is 37800, while the sum is 35.

The square root of 117653543 is about 10846.8217925805. The cubic root of 117653543 is about 490.0063070131.

The spelling of 117653543 in words is "one hundred seventeen million, six hundred fifty-three thousand, five hundred forty-three".