1315051040 has 48 divisors (see below), whose sum is σ = 3190790232. Its totient is φ = 511801344.

The previous prime is 1315051039. The next prime is 1315051043. The reversal of 1315051040 is 401505131.

It can be written as a sum of positive squares in 4 ways, for example, as 1244960656 + 70090384 = 35284^2 + 8372^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1315051043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105149 + ... + 116988.

Almost surely, 2^1315051040 is an apocalyptic number.

1315051040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315051040 is an abundant number, since it is smaller than the sum of its proper divisors (1875739192).

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

1315051040 is a wasteful number, since it uses less digits than its factorization.

1315051040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222189 (or 222181 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1315051040 is about 36263.6324711135. The cubic root of 1315051040 is about 1095.5886800798.

Adding to 1315051040 its reverse (401505131), we get a palindrome (1716556171).

The spelling of 1315051040 in words is "one billion, three hundred fifteen million, fifty-one thousand, forty".