317225803 has 4 divisors (see below), whose sum is σ = 322426288. Its totient is φ = 312025320.

The previous prime is 317225791. The next prime is 317225819. The reversal of 317225803 is 308522713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308522713 = 23 ⋅13414031.

It is a cyclic number.

It is not a de Polignac number, because 317225803 - 2²¹ = 315128651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317225833) 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, 2600151 + ... + 2600272.

It is an arithmetic number, because the mean of its divisors is an integer number (80606572).

Almost surely, 2^317225803 is an apocalyptic number.

317225803 is a deficient number, since it is larger than the sum of its proper divisors (5200485).

317225803 is an equidigital number, since it uses as much as digits as its factorization.

317225803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200484.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 317225803 is about 17810.8338659368. The cubic root of 317225803 is about 682.0080515213.

The spelling of 317225803 in words is "three hundred seventeen million, two hundred twenty-five thousand, eight hundred three".