1315835730 has 48 divisors (see below), whose sum is σ = 3732191424. Its totient is φ = 318990240.

The previous prime is 1315835723. The next prime is 1315835743. The reversal of 1315835730 is 375385131.

It is a happy number.

1315835730 is a `hidden beast` number, since 1 + 3 + 1 + 5 + 83 + 573 + 0 = 666.

1315835730 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 663574 + ... + 665553.

It is an arithmetic number, because the mean of its divisors is an integer number (77753988).

Almost surely, 2^1315835730 is an apocalyptic number.

1315835730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1315835730 is an abundant number, since it is smaller than the sum of its proper divisors (2416355694).

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

1315835730 is a wasteful number, since it uses less digits than its factorization.

1315835730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329151 (or 1329148 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 1315835730 is about 36274.4500992089. The cubic root of 1315835730 is about 1095.8065490746.

The spelling of 1315835730 in words is "one billion, three hundred fifteen million, eight hundred thirty-five thousand, seven hundred thirty".