317473018 has 4 divisors (see below), whose sum is σ = 476209530. Its totient is φ = 158736508.

The previous prime is 317473003. The next prime is 317473019. The reversal of 317473018 is 810374713.

317473018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 810374713 = 257 ⋅3153209.

It can be written as a sum of positive squares in only one way, i.e., 270372249 + 47100769 = 16443^2 + 6863^2 .

It is not an unprimeable number, because it can be changed into a prime (317473019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79368253 + ... + 79368256.

Almost surely, 2^317473018 is an apocalyptic number.

317473018 is a deficient number, since it is larger than the sum of its proper divisors (158736512).

317473018 is a wasteful number, since it uses less digits than its factorization.

317473018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158736511.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 317473018 is about 17817.7725319412. The cubic root of 317473018 is about 682.1851691457.

The spelling of 317473018 in words is "three hundred seventeen million, four hundred seventy-three thousand, eighteen".