115445250 has 80 divisors (see below), whose sum is σ = 322892856. Its totient is φ = 30780000.

The previous prime is 115445243. The next prime is 115445261. The reversal of 115445250 is 52544511.

It can be written as a sum of positive squares in 4 ways, for example, as 55398249 + 60047001 = 7443^2 + 7749^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17400 + ... + 23100.

Almost surely, 2^115445250 is an apocalyptic number.

115445250 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 115445250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161446428).

115445250 is an abundant number, since it is smaller than the sum of its proper divisors (207447606).

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

115445250 is an equidigital number, since it uses as much as digits as its factorization.

115445250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5730 (or 5711 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 115445250 is about 10744.5451276450. The cubic root of 115445250 is about 486.9212065799.

Adding to 115445250 its reverse (52544511), we get a palindrome (167989761).

The spelling of 115445250 in words is "one hundred fifteen million, four hundred forty-five thousand, two hundred fifty".