117485279 has 2 divisors, whose sum is σ = 117485280. Its totient is φ = 117485278.

The previous prime is 117485267. The next prime is 117485297. The reversal of 117485279 is 972584711.

Together with next prime (117485297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117485279 - 2²⁰ = 116436703 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117485209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58742639 + 58742640.

It is an arithmetic number, because the mean of its divisors is an integer number (58742640).

Almost surely, 2^117485279 is an apocalyptic number.

117485279 is a deficient number, since it is larger than the sum of its proper divisors (1).

117485279 is an equidigital number, since it uses as much as digits as its factorization.

117485279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 44.

The square root of 117485279 is about 10839.0626439743. The cubic root of 117485279 is about 489.7725989119.

The spelling of 117485279 in words is "one hundred seventeen million, four hundred eighty-five thousand, two hundred seventy-nine".