1315000000 has 112 divisors (see below), whose sum is σ = 3274210368. Its totient is φ = 524000000.

The previous prime is 1314999991. The next prime is 1315000007. The reversal of 1315000000 is 5131.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1315000007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4999869 + ... + 5000131.

Almost surely, 2^1315000000 is an apocalyptic number.

1315000000 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 1315000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1637105184).

1315000000 is an abundant number, since it is smaller than the sum of its proper divisors (1959210368).

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

1315000000 is an frugal number, since it uses more digits than its factorization.

1315000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 1315000000 is about 36262.9287289375. The cubic root of 1315000000 is about 1095.5745058341.

Adding to 1315000000 its reverse (5131), we get a palindrome (1315005131).

The spelling of 1315000000 in words is "one billion, three hundred fifteen million", and thus it is an aban number.