317989106 has 4 divisors (see below), whose sum is σ = 476983662. Its totient is φ = 158994552.

The previous prime is 317989093. The next prime is 317989109. The reversal of 317989106 is 601989713.

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., 256288081 + 61701025 = 16009^2 + 7855^2 .

It is a super-2 number, since 2×317989106² = 202234143069358472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (317989109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79497275 + ... + 79497278.

Almost surely, 2^317989106 is an apocalyptic number.

317989106 is a deficient number, since it is larger than the sum of its proper divisors (158994556).

317989106 is a wasteful number, since it uses less digits than its factorization.

317989106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158994555.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 317989106 is about 17832.2490449186. The cubic root of 317989106 is about 682.5546251904.

It can be divided in two parts, 31798 and 9106, that added together give a palindrome (40904).

The spelling of 317989106 in words is "three hundred seventeen million, nine hundred eighty-nine thousand, one hundred six".