117065287 has 4 divisors (see below), whose sum is σ = 119274120. Its totient is φ = 114856456.

The previous prime is 117065279. The next prime is 117065321. The reversal of 117065287 is 782560711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 782560711 = 17 ⋅46032983.

It is a cyclic number.

It is not a de Polignac number, because 117065287 - 2³ = 117065279 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 (117065227) 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, 1104337 + ... + 1104442.

It is an arithmetic number, because the mean of its divisors is an integer number (29818530).

Almost surely, 2^117065287 is an apocalyptic number.

117065287 is a deficient number, since it is larger than the sum of its proper divisors (2208833).

117065287 is an equidigital number, since it uses as much as digits as its factorization.

117065287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208832.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 117065287 is about 10819.6712981495. The cubic root of 117065287 is about 489.1882812306.

The spelling of 117065287 in words is "one hundred seventeen million, sixty-five thousand, two hundred eighty-seven".