115169225 has 6 divisors (see below), whose sum is σ = 142809870. Its totient is φ = 92135360.

The previous prime is 115169221. The next prime is 115169227. The reversal of 115169225 is 522961511.

115169225 = 1202² + 1203² + ... + 1276².

It can be written as a sum of positive squares in 3 ways, for example, as 31483321 + 83685904 = 5611^2 + 9148^2 .

It is not a de Polignac number, because 115169225 - 2² = 115169221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115169191 and 115169200.

It is not an unprimeable number, because it can be changed into a prime (115169221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2303360 + ... + 2303409.

It is an arithmetic number, because the mean of its divisors is an integer number (23801645).

Almost surely, 2^115169225 is an apocalyptic number.

It is an amenable number.

115169225 is a deficient number, since it is larger than the sum of its proper divisors (27640645).

115169225 is an equidigital number, since it uses as much as digits as its factorization.

115169225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606779 (or 4606774 counting only the distinct ones).

The product of its digits is 5400, while the sum is 32.

The square root of 115169225 is about 10731.6925505719. The cubic root of 115169225 is about 486.5328271373.

The spelling of 115169225 in words is "one hundred fifteen million, one hundred sixty-nine thousand, two hundred twenty-five".