317545142 has 16 divisors (see below), whose sum is σ = 508805712. Its totient is φ = 148108800.

The previous prime is 317545097. The next prime is 317545169. The reversal of 317545142 is 241545713.

It is a junction number, because it is equal to n+sod(n) for n = 317545099 and 317545108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37484 + ... + 45167.

It is an arithmetic number, because the mean of its divisors is an integer number (31800357).

Almost surely, 2^317545142 is an apocalyptic number.

317545142 is a deficient number, since it is larger than the sum of its proper divisors (191260570).

317545142 is a wasteful number, since it uses less digits than its factorization.

317545142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82783.

The product of its digits is 16800, while the sum is 32.

The square root of 317545142 is about 17819.7963512494. The cubic root of 317545142 is about 682.2368251867.

The spelling of 317545142 in words is "three hundred seventeen million, five hundred forty-five thousand, one hundred forty-two".