1317245232 has 80 divisors (see below), whose sum is σ = 3459278592. Its totient is φ = 431865600.

The previous prime is 1317245197. The next prime is 1317245233. The reversal of 1317245232 is 2325427131.

It is a self number, because there is not a number n which added to its sum of digits gives 1317245232.

It is not an unprimeable number, because it can be changed into a prime (1317245233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 808803 + ... + 810429.

Almost surely, 2^1317245232 is an apocalyptic number.

1317245232 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 1317245232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1729639296).

1317245232 is an abundant number, since it is smaller than the sum of its proper divisors (2142033360).

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

1317245232 is a wasteful number, since it uses less digits than its factorization.

1317245232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906 (or 1900 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 1317245232 is about 36293.8732019607. The cubic root of 1317245232 is about 1096.1976795476.

The spelling of 1317245232 in words is "one billion, three hundred seventeen million, two hundred forty-five thousand, two hundred thirty-two".