1381080140 has 48 divisors (see below), whose sum is σ = 3193011360. Its totient is φ = 497594880.

The previous prime is 1381080097. The next prime is 1381080193. The reversal of 1381080140 is 410801831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4817 + ... + 52776.

It is an arithmetic number, because the mean of its divisors is an integer number (66521070).

Almost surely, 2^1381080140 is an apocalyptic number.

1381080140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1381080140 is an abundant number, since it is smaller than the sum of its proper divisors (1811931220).

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

1381080140 is a wasteful number, since it uses less digits than its factorization.

1381080140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57722 (or 57720 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1381080140 is about 37162.8865940201. The cubic root of 1381080140 is about 1113.6266789692.

Adding to 1381080140 its reverse (410801831), we get a palindrome (1791881971).

The spelling of 1381080140 in words is "one billion, three hundred eighty-one million, eighty thousand, one hundred forty".