1591316842 has 8 divisors (see below), whose sum is σ = 2512605600. Its totient is φ = 753781644.

The previous prime is 1591316819. The next prime is 1591316863. The reversal of 1591316842 is 2486131951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1591316795 and 1591316804.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20938342 + ... + 20938417.

It is an arithmetic number, because the mean of its divisors is an integer number (314075700).

Almost surely, 2^1591316842 is an apocalyptic number.

1591316842 is a deficient number, since it is larger than the sum of its proper divisors (921288758).

1591316842 is a wasteful number, since it uses less digits than its factorization.

1591316842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41876780.

The product of its digits is 51840, while the sum is 40.

The square root of 1591316842 is about 39891.3128638304. The cubic root of 1591316842 is about 1167.4874472222.

The spelling of 1591316842 in words is "one billion, five hundred ninety-one million, three hundred sixteen thousand, eight hundred forty-two".