1315580730 has 16 divisors (see below), whose sum is σ = 3157393824. Its totient is φ = 350821520.

The previous prime is 1315580699. The next prime is 1315580771. The reversal of 1315580730 is 370855131.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1315580691 and 1315580700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21926316 + ... + 21926375.

It is an arithmetic number, because the mean of its divisors is an integer number (197337114).

Almost surely, 2^1315580730 is an apocalyptic number.

1315580730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1315580730 is an abundant number, since it is smaller than the sum of its proper divisors (1841813094).

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

1315580730 is a wasteful number, since it uses less digits than its factorization.

1315580730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43852701.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 1315580730 is about 36270.9350582529. The cubic root of 1315580730 is about 1095.7357578869.

The spelling of 1315580730 in words is "one billion, three hundred fifteen million, five hundred eighty thousand, seven hundred thirty".