1008140317 has 4 divisors (see below), whose sum is σ = 1008792700. Its totient is φ = 1007487936.

The previous prime is 1008140281. The next prime is 1008140321. The reversal of 1008140317 is 7130418001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 503284356 + 504855961 = 22434^2 + 22469^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1008140317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1008140291 and 1008140300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1008140387) 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, 323868 + ... + 326965.

It is an arithmetic number, because the mean of its divisors is an integer number (252198175).

Almost surely, 2^1008140317 is an apocalyptic number.

It is an amenable number.

1008140317 is a deficient number, since it is larger than the sum of its proper divisors (652383).

1008140317 is an equidigital number, since it uses as much as digits as its factorization.

1008140317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652382.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1008140317 is about 31751.2254409180. The cubic root of 1008140317 is about 1002.7061093665.

Adding to 1008140317 its reverse (7130418001), we get a palindrome (8138558318).

The spelling of 1008140317 in words is "one billion, eight million, one hundred forty thousand, three hundred seventeen".