317128148 has 12 divisors (see below), whose sum is σ = 559026132. Its totient is φ = 157406400.

The previous prime is 317128099. The next prime is 317128151. The reversal of 317128148 is 841821713.

It can be written as a sum of positive squares in 2 ways, for example, as 86452804 + 230675344 = 9298^2 + 15188^2 .

It is a super-3 number, since 3×317128148³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288803 + ... + 289898.

It is an arithmetic number, because the mean of its divisors is an integer number (46585511).

Almost surely, 2^317128148 is an apocalyptic number.

It is an amenable number.

317128148 is a deficient number, since it is larger than the sum of its proper divisors (241897984).

317128148 is a wasteful number, since it uses less digits than its factorization.

317128148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578842 (or 578840 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 317128148 is about 17808.0922055115. The cubic root of 317128148 is about 681.9380610697.

The spelling of 317128148 in words is "three hundred seventeen million, one hundred twenty-eight thousand, one hundred forty-eight".