1315712040 has 32 divisors (see below), whose sum is σ = 3947136480. Its totient is φ = 350856512.

The previous prime is 1315712029. The next prime is 1315712117. The reversal of 1315712040 is 402175131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1315712040.

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, 5482014 + ... + 5482253.

It is an arithmetic number, because the mean of its divisors is an integer number (123348015).

Almost surely, 2^1315712040 is an apocalyptic number.

1315712040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315712040 is an abundant number, since it is smaller than the sum of its proper divisors (2631424440).

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

1315712040 is a wasteful number, since it uses less digits than its factorization.

1315712040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10964281 (or 10964277 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1315712040 is about 36272.7451401186. The cubic root of 1315712040 is about 1095.7722123267.

Adding to 1315712040 its reverse (402175131), we get a palindrome (1717887171).

The spelling of 1315712040 in words is "one billion, three hundred fifteen million, seven hundred twelve thousand, forty".