318485017 has 4 divisors (see below), whose sum is σ = 321638436. Its totient is φ = 315331600.

The previous prime is 318484997. The next prime is 318485023. The reversal of 318485017 is 710584813.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 710584813 = 1151 ⋅617363.

It can be written as a sum of positive squares in 2 ways, for example, as 311910921 + 6574096 = 17661^2 + 2564^2 .

It is a cyclic number.

It is not a de Polignac number, because 318485017 - 2¹⁹ = 317960729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318185017) 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, 1576558 + ... + 1576759.

It is an arithmetic number, because the mean of its divisors is an integer number (80409609).

Almost surely, 2^318485017 is an apocalyptic number.

It is an amenable number.

318485017 is a deficient number, since it is larger than the sum of its proper divisors (3153419).

318485017 is a wasteful number, since it uses less digits than its factorization.

318485017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153418.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 318485017 is about 17846.1485200589. The cubic root of 318485017 is about 682.9092605471.

The spelling of 318485017 in words is "three hundred eighteen million, four hundred eighty-five thousand, seventeen".