117285123 has 16 divisors (see below), whose sum is σ = 161063936. Its totient is φ = 75872160.

The previous prime is 117285109. The next prime is 117285137. The reversal of 117285123 is 321582711.

It is an interprime number because it is at equal distance from previous prime (117285109) and next prime (117285137).

It is not a de Polignac number, because 117285123 - 2⁴ = 117285107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117285323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17358 + ... + 23148.

It is an arithmetic number, because the mean of its divisors is an integer number (10066496).

Almost surely, 2^117285123 is an apocalyptic number.

117285123 is a deficient number, since it is larger than the sum of its proper divisors (43778813).

117285123 is a wasteful number, since it uses less digits than its factorization.

117285123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5994.

The product of its digits is 3360, while the sum is 30.

The square root of 117285123 is about 10829.8256218648. The cubic root of 117285123 is about 489.4943040519.

The spelling of 117285123 in words is "one hundred seventeen million, two hundred eighty-five thousand, one hundred twenty-three".