317145052 has 18 divisors (see below), whose sum is σ = 645617112. Its totient is φ = 135919224.

The previous prime is 317145007. The next prime is 317145053. The reversal of 317145052 is 250541713.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 317145052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317145053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 808848 + ... + 809239.

Almost surely, 2^317145052 is an apocalyptic number.

It is an amenable number.

317145052 is an abundant number, since it is smaller than the sum of its proper divisors (328472060).

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

317145052 is a wasteful number, since it uses less digits than its factorization.

317145052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618105 (or 1618096 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 317145052 is about 17808.5668148787. The cubic root of 317145052 is about 681.9501773874.

Adding to 317145052 its reverse (250541713), we get a palindrome (567686765).

The spelling of 317145052 in words is "three hundred seventeen million, one hundred forty-five thousand, fifty-two".