117728075 has 12 divisors (see below), whose sum is σ = 146266680. Its totient is φ = 93999360.

The previous prime is 117728071. The next prime is 117728089. The reversal of 117728075 is 570827711.

It is not a de Polignac number, because 117728075 - 2² = 117728071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117728071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9371 + ... + 17979.

It is an arithmetic number, because the mean of its divisors is an integer number (12188890).

Almost surely, 2^117728075 is an apocalyptic number.

117728075 is a deficient number, since it is larger than the sum of its proper divisors (28538605).

117728075 is an equidigital number, since it uses as much as digits as its factorization.

117728075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9166 (or 9161 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 38.

The square root of 117728075 is about 10850.2569094008. The cubic root of 117728075 is about 490.1097560606.

The spelling of 117728075 in words is "one hundred seventeen million, seven hundred twenty-eight thousand, seventy-five".