115222265 has 16 divisors (see below), whose sum is σ = 142203600. Its totient is φ = 89586432.

The previous prime is 115222231. The next prime is 115222267. The reversal of 115222265 is 562222511.

It can be written as a sum of positive squares in 8 ways, for example, as 1948816 + 113273449 = 1396^2 + 10643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115222265 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115222267) 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 15 ways as a sum of consecutive naturals, for example, 26891 + ... + 30879.

It is an arithmetic number, because the mean of its divisors is an integer number (8887725).

Almost surely, 2^115222265 is an apocalyptic number.

It is an amenable number.

115222265 is a deficient number, since it is larger than the sum of its proper divisors (26981335).

115222265 is a wasteful number, since it uses less digits than its factorization.

115222265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156.

The product of its digits is 2400, while the sum is 26.

The square root of 115222265 is about 10734.1634513361. The cubic root of 115222265 is about 486.6075049014.

Adding to 115222265 its reverse (562222511), we get a palindrome (677444776).

The spelling of 115222265 in words is "one hundred fifteen million, two hundred twenty-two thousand, two hundred sixty-five".