225072313 has 4 divisors (see below), whose sum is σ = 225106000. Its totient is φ = 225038628.

The previous prime is 225072311. The next prime is 225072349. The reversal of 225072313 is 313270522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313270522 = 2 ⋅156635261.

It is a cyclic number.

It is not a de Polignac number, because 225072313 - 2¹ = 225072311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225072311) 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, 3063 + ... + 21436.

It is an arithmetic number, because the mean of its divisors is an integer number (56276500).

Almost surely, 2^225072313 is an apocalyptic number.

It is an amenable number.

225072313 is a deficient number, since it is larger than the sum of its proper divisors (33687).

225072313 is an equidigital number, since it uses as much as digits as its factorization.

225072313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33686.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 225072313 is about 15002.4102396915. The cubic root of 225072313 is about 608.2853514333.

The spelling of 225072313 in words is "two hundred twenty-five million, seventy-two thousand, three hundred thirteen".