117251239 has 8 divisors (see below), whose sum is σ = 137118080. Its totient is φ = 98163576.

The previous prime is 117251221. The next prime is 117251297. The reversal of 117251239 is 932152711.

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

It is not a de Polignac number, because 117251239 - 2⁷ = 117251111 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 117251239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117251209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194469 + ... + 195070.

It is an arithmetic number, because the mean of its divisors is an integer number (17139760).

Almost surely, 2^117251239 is an apocalyptic number.

117251239 is a deficient number, since it is larger than the sum of its proper divisors (19866841).

117251239 is an equidigital number, since it uses as much as digits as its factorization.

117251239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389589.

The product of its digits is 3780, while the sum is 31.

The square root of 117251239 is about 10828.2611254070. The cubic root of 117251239 is about 489.4471607539.

The spelling of 117251239 in words is "one hundred seventeen million, two hundred fifty-one thousand, two hundred thirty-nine".