1316457520 has 120 divisors (see below), whose sum is σ = 3647766528. Its totient is φ = 440294400.

The previous prime is 1316457517. The next prime is 1316457529. The reversal of 1316457520 is 257546131.

It is not an unprimeable number, because it can be changed into a prime (1316457529) 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, 156625 + ... + 164815.

Almost surely, 2^1316457520 is an apocalyptic number.

1316457520 is a gapful number since it is divisible by the number (10) 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 1316457520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1823883264).

1316457520 is an abundant number, since it is smaller than the sum of its proper divisors (2331309008).

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

1316457520 is a wasteful number, since it uses less digits than its factorization.

1316457520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8259 (or 8246 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 1316457520 is about 36283.0197199737. The cubic root of 1316457520 is about 1095.9791274196.

The spelling of 1316457520 in words is "one billion, three hundred sixteen million, four hundred fifty-seven thousand, five hundred twenty".