1240108317 has 36 divisors (see below), whose sum is σ = 2140064316. Its totient is φ = 689472000.

The previous prime is 1240108297. The next prime is 1240108327. The reversal of 1240108317 is 7138010421.

1240108317 is a `hidden beast` number, since 1 + 240 + 108 + 317 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1010858436 + 229249881 = 31794^2 + 15141^2 .

It is not a de Polignac number, because 1240108317 - 2⁷ = 1240108189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240108327) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21684 + ... + 54317.

It is an arithmetic number, because the mean of its divisors is an integer number (59446231).

Almost surely, 2^1240108317 is an apocalyptic number.

It is an amenable number.

1240108317 is a deficient number, since it is larger than the sum of its proper divisors (899955999).

1240108317 is a wasteful number, since it uses less digits than its factorization.

1240108317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76058 (or 76048 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1240108317 is about 35215.1716877825. The cubic root of 1240108317 is about 1074.3683520589.

Adding to 1240108317 its reverse (7138010421), we get a palindrome (8378118738).

The spelling of 1240108317 in words is "one billion, two hundred forty million, one hundred eight thousand, three hundred seventeen".