117210258 has 48 divisors (see below), whose sum is σ = 277969536. Its totient is φ = 35399520.

The previous prime is 117210253. The next prime is 117210283. The reversal of 117210258 is 852012711.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117210253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71860 + ... + 73472.

It is an arithmetic number, because the mean of its divisors is an integer number (5791032).

Almost surely, 2^117210258 is an apocalyptic number.

117210258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 117210258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138984768).

117210258 is an abundant number, since it is smaller than the sum of its proper divisors (160759278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117210258 is a wasteful number, since it uses less digits than its factorization.

117210258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999 (or 1996 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 117210258 is about 10826.3686432709. The cubic root of 117210258 is about 489.3901311607.

Adding to 117210258 its reverse (852012711), we get a palindrome (969222969).

The spelling of 117210258 in words is "one hundred seventeen million, two hundred ten thousand, two hundred fifty-eight".