117075081 has 4 divisors (see below), whose sum is σ = 156100112. Its totient is φ = 78050052.

The previous prime is 117075061. The next prime is 117075089. The reversal of 117075081 is 180570711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-117075081 is a prime.

It is a super-2 number, since 2×117075081² = 27413149182313122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117075089) 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, 19512511 + ... + 19512516.

It is an arithmetic number, because the mean of its divisors is an integer number (39025028).

Almost surely, 2^117075081 is an apocalyptic number.

It is an amenable number.

117075081 is a deficient number, since it is larger than the sum of its proper divisors (39025031).

117075081 is an equidigital number, since it uses as much as digits as its factorization.

117075081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39025030.

The product of its (nonzero) digits is 1960, while the sum is 30.

The square root of 117075081 is about 10820.1238902334. The cubic root of 117075081 is about 489.2019231238.

The spelling of 117075081 in words is "one hundred seventeen million, seventy-five thousand, eighty-one".