117724105 has 8 divisors (see below), whose sum is σ = 141345864. Its totient is φ = 94128000.

The previous prime is 117724093. The next prime is 117724109. The reversal of 117724105 is 501427711.

It can be written as a sum of positive squares in 4 ways, for example, as 38638656 + 79085449 = 6216^2 + 8893^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-117724105 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117724109) 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, 5805 + ... + 16405.

It is an arithmetic number, because the mean of its divisors is an integer number (17668233).

Almost surely, 2^117724105 is an apocalyptic number.

It is an amenable number.

117724105 is a deficient number, since it is larger than the sum of its proper divisors (23621759).

117724105 is a wasteful number, since it uses less digits than its factorization.

117724105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12827.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 117724105 is about 10850.0739628815. The cubic root of 117724105 is about 490.1042468746.

The spelling of 117724105 in words is "one hundred seventeen million, seven hundred twenty-four thousand, one hundred five".