317123907 has 4 divisors (see below), whose sum is σ = 422831880. Its totient is φ = 211415936.

The previous prime is 317123887. The next prime is 317123923. The reversal of 317123907 is 709321713.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 317123907 - 2¹⁴ = 317107523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (317123957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52853982 + ... + 52853987.

It is an arithmetic number, because the mean of its divisors is an integer number (105707970).

Almost surely, 2^317123907 is an apocalyptic number.

317123907 is a deficient number, since it is larger than the sum of its proper divisors (105707973).

317123907 is a wasteful number, since it uses less digits than its factorization.

317123907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105707972.

The product of its (nonzero) digits is 7938, while the sum is 33.

The square root of 317123907 is about 17807.9731300336. The cubic root of 317123907 is about 681.9350211711.

The spelling of 317123907 in words is "three hundred seventeen million, one hundred twenty-three thousand, nine hundred seven".