1361280860 has 24 divisors (see below), whose sum is σ = 2859509520. Its totient is φ = 544356224.

The previous prime is 1361280853. The next prime is 1361280871. The reversal of 1361280860 is 680821631.

1361280860 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1361280860.

It is a congruent number.

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, 83456 + ... + 98424.

It is an arithmetic number, because the mean of its divisors is an integer number (119146230).

Almost surely, 2^1361280860 is an apocalyptic number.

1361280860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361280860 is an abundant number, since it is smaller than the sum of its proper divisors (1498228660).

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

1361280860 is a wasteful number, since it uses less digits than its factorization.

1361280860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19525 (or 19523 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1361280860 is about 36895.5398388477. The cubic root of 1361280860 is about 1108.2793621497.

The spelling of 1361280860 in words is "one billion, three hundred sixty-one million, two hundred eighty thousand, eight hundred sixty".