225312115 has 8 divisors (see below), whose sum is σ = 308999520. Its totient is φ = 154499712.

The previous prime is 225312103. The next prime is 225312121. The reversal of 225312115 is 511213522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225312115 - 2⁷ = 225311987 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3218710 + ... + 3218779.

It is an arithmetic number, because the mean of its divisors is an integer number (38624940).

Almost surely, 2^225312115 is an apocalyptic number.

225312115 is a deficient number, since it is larger than the sum of its proper divisors (83687405).

225312115 is an equidigital number, since it uses as much as digits as its factorization.

225312115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6437501.

The product of its digits is 600, while the sum is 22.

The square root of 225312115 is about 15010.4002278420. The cubic root of 225312115 is about 608.5013061307.

Adding to 225312115 its reverse (511213522), we get a palindrome (736525637).

The spelling of 225312115 in words is "two hundred twenty-five million, three hundred twelve thousand, one hundred fifteen".