1317735048 has 96 divisors (see below), whose sum is σ = 3860632800. Its totient is φ = 373701888.

The previous prime is 1317735047. The next prime is 1317735053. The reversal of 1317735048 is 8405377131.

It is a junction number, because it is equal to n+sod(n) for n = 1317734997 and 1317735015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317735047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157023 + ... + 165201.

It is an arithmetic number, because the mean of its divisors is an integer number (40214925).

Almost surely, 2^1317735048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317735048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1930316400).

1317735048 is an abundant number, since it is smaller than the sum of its proper divisors (2542897752).

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

1317735048 is a wasteful number, since it uses less digits than its factorization.

1317735048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8339 (or 8328 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 1317735048 is about 36300.6204905646. The cubic root of 1317735048 is about 1096.3335359573. Note that the first 3 decimals are identical.

The spelling of 1317735048 in words is "one billion, three hundred seventeen million, seven hundred thirty-five thousand, forty-eight".