115240225 has 27 divisors (see below), whose sum is σ = 152161113. Its totient is φ = 86567040.

The previous prime is 115240219. The next prime is 115240231. The reversal of 115240225 is 522042511.

The square root of 115240225 is 10735.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (115240219) and next prime (115240231).

It can be written as a sum of positive squares in 4 ways, for example, as 58629649 + 56610576 = 7657^2 + 7524^2 .

It is not a de Polignac number, because 115240225 - 2⁹ = 115239713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115240196 and 115240205.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1019769 + ... + 1019881.

Almost surely, 2^115240225 is an apocalyptic number.

115240225 is the 10735-th square number.

115240225 is the 5368-th centered octagonal number.

It is an amenable number.

115240225 is a deficient number, since it is larger than the sum of its proper divisors (36920888).

115240225 is an equidigital number, since it uses as much as digits as its factorization.

115240225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The cubic root of 115240225 is about 486.6327865220.

Adding to 115240225 its reverse (522042511), we get a palindrome (637282736).

The spelling of 115240225 in words is "one hundred fifteen million, two hundred forty thousand, two hundred twenty-five".