117205113 has 8 divisors (see below), whose sum is σ = 156431808. Its totient is φ = 78057584.

The previous prime is 117205087. The next prime is 117205117. The reversal of 117205113 is 311502711.

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 117205113 - 2⁹ = 117204601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117205113.

It is not an unprimeable number, because it can be changed into a prime (117205117) 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, 16245 + ... + 22322.

It is an arithmetic number, because the mean of its divisors is an integer number (19553976).

Almost surely, 2^117205113 is an apocalyptic number.

It is an amenable number.

117205113 is a deficient number, since it is larger than the sum of its proper divisors (39226695).

117205113 is a wasteful number, since it uses less digits than its factorization.

117205113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39583.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 117205113 is about 10826.1310263639. The cubic root of 117205113 is about 489.3829703851.

Adding to 117205113 its reverse (311502711), we get a palindrome (428707824).

The spelling of 117205113 in words is "one hundred seventeen million, two hundred five thousand, one hundred thirteen".