117305250 has 64 divisors (see below), whose sum is σ = 294503040. Its totient is φ = 31099200.

The previous prime is 117305231. The next prime is 117305269. The reversal of 117305250 is 52503711.

It is an interprime number because it is at equal distance from previous prime (117305231) and next prime (117305269).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 117305250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171409 + ... + 172091.

It is an arithmetic number, because the mean of its divisors is an integer number (4601610).

Almost surely, 2^117305250 is an apocalyptic number.

117305250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 117305250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147251520).

117305250 is an abundant number, since it is smaller than the sum of its proper divisors (177197790).

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

117305250 is a wasteful number, since it uses less digits than its factorization.

117305250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 117305250 is about 10830.7548213409. The cubic root of 117305250 is about 489.5223027389.

Adding to 117305250 its reverse (52503711), we get a palindrome (169808961).

The spelling of 117305250 in words is "one hundred seventeen million, three hundred five thousand, two hundred fifty".