1115515040 has 48 divisors (see below), whose sum is σ = 2640346632. Its totient is φ = 445369344.

The previous prime is 1115515021. The next prime is 1115515057. The reversal of 1115515040 is 405155111.

It can be written as a sum of positive squares in 4 ways, for example, as 914215696 + 201299344 = 30236^2 + 14188^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1115514997 and 1115515015.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 82862 + ... + 95378.

Almost surely, 2^1115515040 is an apocalyptic number.

1115515040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115515040 is an abundant number, since it is smaller than the sum of its proper divisors (1524831592).

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

1115515040 is a wasteful number, since it uses less digits than its factorization.

1115515040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13089 (or 13081 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 1115515040 is about 33399.3269393262. The cubic root of 1115515040 is about 1037.1107678165.

The spelling of 1115515040 in words is "one billion, one hundred fifteen million, five hundred fifteen thousand, forty".