115261225 has 12 divisors (see below), whose sum is σ = 147853260. Its totient is φ = 89028800.

The previous prime is 115261217. The next prime is 115261231. The reversal of 115261225 is 522162511.

It can be written as a sum of positive squares in 6 ways, for example, as 6330256 + 108930969 = 2516^2 + 10437^2 .

It is not a de Polignac number, because 115261225 - 2³ = 115261217 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 115261225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78766 + ... + 80215.

It is an arithmetic number, because the mean of its divisors is an integer number (12321105).

Almost surely, 2^115261225 is an apocalyptic number.

It is an amenable number.

115261225 is a deficient number, since it is larger than the sum of its proper divisors (32592035).

115261225 is a wasteful number, since it uses less digits than its factorization.

115261225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159020 (or 159015 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 115261225 is about 10735.9780644336. The cubic root of 115261225 is about 486.6623441058.

The spelling of 115261225 in words is "one hundred fifteen million, two hundred sixty-one thousand, two hundred twenty-five".