225310115 has 4 divisors (see below), whose sum is σ = 270372144. Its totient is φ = 180248088.

The previous prime is 225310109. The next prime is 225310117. The reversal of 225310115 is 511013522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 511013522 = 2 ⋅255506761.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225310115 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225310117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22531007 + ... + 22531016.

It is an arithmetic number, because the mean of its divisors is an integer number (67593036).

Almost surely, 2^225310115 is an apocalyptic number.

225310115 is a deficient number, since it is larger than the sum of its proper divisors (45062029).

225310115 is an equidigital number, since it uses as much as digits as its factorization.

225310115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45062028.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 225310115 is about 15010.3336072187. Note that the first 3 decimals coincide. The cubic root of 225310115 is about 608.4995056561.

Adding to 225310115 its reverse (511013522), we get a palindrome (736323637).

The spelling of 225310115 in words is "two hundred twenty-five million, three hundred ten thousand, one hundred fifteen".