317140146 has 24 divisors (see below), whose sum is σ = 717013440. Its totient is φ = 101117016.

The previous prime is 317140141. The next prime is 317140147. The reversal of 317140146 is 641041713.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (317140141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 382606 + ... + 383433.

It is an arithmetic number, because the mean of its divisors is an integer number (29875560).

Almost surely, 2^317140146 is an apocalyptic number.

317140146 is an abundant number, since it is smaller than the sum of its proper divisors (399873294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317140146 is a wasteful number, since it uses less digits than its factorization.

317140146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766070 (or 766067 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 317140146 is about 17808.4290716503. The cubic root of 317140146 is about 681.9466609472.

Adding to 317140146 its reverse (641041713), we get a palindrome (958181859).

The spelling of 317140146 in words is "three hundred seventeen million, one hundred forty thousand, one hundred forty-six".