117451189 has 16 divisors (see below), whose sum is σ = 125737920. Its totient is φ = 109509120.

The previous prime is 117451177. The next prime is 117451199. The reversal of 117451189 is 981154711.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-117451189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117451199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120474 + ... + 121444.

It is an arithmetic number, because the mean of its divisors is an integer number (7858620).

Almost surely, 2^117451189 is an apocalyptic number.

It is an amenable number.

117451189 is a deficient number, since it is larger than the sum of its proper divisors (8286731).

117451189 is an equidigital number, since it uses as much as digits as its factorization.

117451189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140.

The product of its digits is 10080, while the sum is 37.

The square root of 117451189 is about 10837.4899769273. The cubic root of 117451189 is about 489.7252228684.

The spelling of 117451189 in words is "one hundred seventeen million, four hundred fifty-one thousand, one hundred eighty-nine".