1315115500 has 48 divisors (see below), whose sum is σ = 2926463904. Its totient is φ = 516110400.

The previous prime is 1315115497. The next prime is 1315115537. The reversal of 1315115500 is 55115131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1687 + ... + 51313.

It is an arithmetic number, because the mean of its divisors is an integer number (60967998).

Almost surely, 2^1315115500 is an apocalyptic number.

1315115500 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 1315115500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463231952).

1315115500 is an abundant number, since it is smaller than the sum of its proper divisors (1611348404).

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

1315115500 is a wasteful number, since it uses less digits than its factorization.

1315115500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49699 (or 49687 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 22.

The square root of 1315115500 is about 36264.5212294330. The cubic root of 1315115500 is about 1095.6065806506.

The spelling of 1315115500 in words is "one billion, three hundred fifteen million, one hundred fifteen thousand, five hundred".