1315681842 has 16 divisors (see below), whose sum is σ = 2635853472. Its totient is φ = 437812320.

The previous prime is 1315681837. The next prime is 1315681877. The reversal of 1315681842 is 2481865131.

It is a self number, because there is not a number n which added to its sum of digits gives 1315681842.

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 7 ways as a sum of consecutive naturals, for example, 183259 + ... + 190302.

It is an arithmetic number, because the mean of its divisors is an integer number (164740842).

Almost surely, 2^1315681842 is an apocalyptic number.

1315681842 is an abundant number, since it is smaller than the sum of its proper divisors (1320171630).

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

1315681842 is a wasteful number, since it uses less digits than its factorization.

1315681842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374153.

The product of its digits is 46080, while the sum is 39.

The square root of 1315681842 is about 36272.3288747773. The cubic root of 1315681842 is about 1095.7638289364.

The spelling of 1315681842 in words is "one billion, three hundred fifteen million, six hundred eighty-one thousand, eight hundred forty-two".