1316133780 has 96 divisors (see below), whose sum is σ = 4013452800. Its totient is φ = 320314368.

The previous prime is 1316133773. The next prime is 1316133803. The reversal of 1316133780 is 873316131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59941 + ... + 78899.

It is an arithmetic number, because the mean of its divisors is an integer number (41806800).

Almost surely, 2^1316133780 is an apocalyptic number.

1316133780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316133780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2006726400).

1316133780 is an abundant number, since it is smaller than the sum of its proper divisors (2697319020).

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

1316133780 is a wasteful number, since it uses less digits than its factorization.

1316133780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19073 (or 19071 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1316133780 is about 36278.5581301132. The cubic root of 1316133780 is about 1095.8892798891.

The spelling of 1316133780 in words is "one billion, three hundred sixteen million, one hundred thirty-three thousand, seven hundred eighty".