225131315 has 8 divisors (see below), whose sum is σ = 274736880. Its totient is φ = 177052192.

The previous prime is 225131293. The next prime is 225131327. The reversal of 225131315 is 513131522.

It is a happy number.

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 225131315 - 2⁶ = 225131251 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 381284 + ... + 381873.

It is an arithmetic number, because the mean of its divisors is an integer number (34342110).

Almost surely, 2^225131315 is an apocalyptic number.

225131315 is a deficient number, since it is larger than the sum of its proper divisors (49605565).

225131315 is an equidigital number, since it uses as much as digits as its factorization.

225131315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763221.

The product of its digits is 900, while the sum is 23.

The square root of 225131315 is about 15004.3765282000. The cubic root of 225131315 is about 608.3385001542.

Adding to 225131315 its reverse (513131522), we get a palindrome (738262837).

The spelling of 225131315 in words is "two hundred twenty-five million, one hundred thirty-one thousand, three hundred fifteen".