1315842839 has 16 divisors (see below), whose sum is σ = 1400004000. Its totient is φ = 1234759680.

The previous prime is 1315842799. The next prime is 1315842859. The reversal of 1315842839 is 9382485131.

It is not a de Polignac number, because 1315842839 - 2²⁴ = 1299065623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1315842839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315842859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147959 + ... + 156599.

It is an arithmetic number, because the mean of its divisors is an integer number (87500250).

Almost surely, 2^1315842839 is an apocalyptic number.

1315842839 is a deficient number, since it is larger than the sum of its proper divisors (84161161).

1315842839 is an equidigital number, since it uses as much as digits as its factorization.

1315842839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8818.

The product of its digits is 207360, while the sum is 44.

The square root of 1315842839 is about 36274.5480881568. The cubic root of 1315842839 is about 1095.8085224908.

The spelling of 1315842839 in words is "one billion, three hundred fifteen million, eight hundred forty-two thousand, eight hundred thirty-nine".