117216250 has 40 divisors (see below), whose sum is σ = 222678720. Its totient is φ = 46254000.

The previous prime is 117216227. The next prime is 117216271. The reversal of 117216250 is 52612711.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 98157 + ... + 99343.

It is an arithmetic number, because the mean of its divisors is an integer number (5566968).

Almost surely, 2^117216250 is an apocalyptic number.

117216250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117216250 is a deficient number, since it is larger than the sum of its proper divisors (105462470).

117216250 is an equidigital number, since it uses as much as digits as its factorization.

117216250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 117216250 is about 10826.6453714897. The cubic root of 117216250 is about 489.3984705209.

Adding to 117216250 its reverse (52612711), we get a palindrome (169828961).

It can be divided in two parts, 11721 and 6250, that added together give a palindrome (17971).

The spelling of 117216250 in words is "one hundred seventeen million, two hundred sixteen thousand, two hundred fifty".