117285751 has 16 divisors (see below), whose sum is σ = 130118688. Its totient is φ = 104832000.

The previous prime is 117285743. The next prime is 117285757. The reversal of 117285751 is 157582711.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 117285751 - 2³ = 117285743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117285751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117285757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194851 + ... + 195451.

It is an arithmetic number, because the mean of its divisors is an integer number (8132418).

Almost surely, 2^117285751 is an apocalyptic number.

117285751 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117285751 is a deficient number, since it is larger than the sum of its proper divisors (12832937).

117285751 is a wasteful number, since it uses less digits than its factorization.

117285751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882.

The product of its digits is 19600, while the sum is 37.

The square root of 117285751 is about 10829.8546158293. The cubic root of 117285751 is about 489.4951777117.

The spelling of 117285751 in words is "one hundred seventeen million, two hundred eighty-five thousand, seven hundred fifty-one".