317148946 has 4 divisors (see below), whose sum is σ = 475723422. Its totient is φ = 158574472.

The previous prime is 317148917. The next prime is 317148947. The reversal of 317148946 is 649841713.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 278522721 + 38626225 = 16689^2 + 6215^2 .

It is not an unprimeable number, because it can be changed into a prime (317148947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79287235 + ... + 79287238.

Almost surely, 2^317148946 is an apocalyptic number.

317148946 is a deficient number, since it is larger than the sum of its proper divisors (158574476).

317148946 is a wasteful number, since it uses less digits than its factorization.

317148946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158574475.

The product of its digits is 145152, while the sum is 43.

The square root of 317148946 is about 17808.6761439474. The cubic root of 317148946 is about 681.9529684374.

The spelling of 317148946 in words is "three hundred seventeen million, one hundred forty-eight thousand, nine hundred forty-six".