1316141778 has 16 divisors (see below), whose sum is σ = 3008324160. Its totient is φ = 376040496.

The previous prime is 1316141777. The next prime is 1316141789. The reversal of 1316141778 is 8771416131.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1316141777) 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 7 ways as a sum of consecutive naturals, for example, 15668313 + ... + 15668396.

It is an arithmetic number, because the mean of its divisors is an integer number (188020260).

Almost surely, 2^1316141778 is an apocalyptic number.

1316141778 is an abundant number, since it is smaller than the sum of its proper divisors (1692182382).

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

1316141778 is a wasteful number, since it uses less digits than its factorization.

1316141778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31336721.

The product of its digits is 28224, while the sum is 39.

The square root of 1316141778 is about 36278.6683603464. The cubic root of 1316141778 is about 1095.8914997508.

The spelling of 1316141778 in words is "one billion, three hundred sixteen million, one hundred forty-one thousand, seven hundred seventy-eight".