1317740112 has 90 divisors (see below), whose sum is σ = 3976261562. Its totient is φ = 404975232.

The previous prime is 1317740107. The next prime is 1317740119. The reversal of 1317740112 is 2110477131.

It can be written as a sum of positive squares in only one way, i.e., 912281616 + 405458496 = 30204^2 + 20136^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317740119) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1570189 + ... + 1571027.

Almost surely, 2^1317740112 is an apocalyptic number.

1317740112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317740112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1988130781).

1317740112 is an abundant number, since it is smaller than the sum of its proper divisors (2658521450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317740112 is an equidigital number, since it uses as much as digits as its factorization.

1317740112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 1317740112 is about 36300.6902413714. The cubic root of 1317740112 is about 1096.3349403432.

The spelling of 1317740112 in words is "one billion, three hundred seventeen million, seven hundred forty thousand, one hundred twelve".