1381116 has 24 divisors (see below), whose sum is σ = 3515904. Its totient is φ = 418480.

The previous prime is 1381111. The next prime is 1381141. The reversal of 1381116 is 6111831.

It is a super-3 number, since 3×1381116³ = 7903359266333306688, which contains 333 as substring.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1381092 and 1381101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5100 + ... + 5363.

It is an arithmetic number, because the mean of its divisors is an integer number (146496).

2^1381116 is an apocalyptic number.

It is an amenable number.

1381116 is an abundant number, since it is smaller than the sum of its proper divisors (2134788).

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

1381116 is a wasteful number, since it uses less digits than its factorization.

1381116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481 (or 10479 counting only the distinct ones).

The product of its digits is 144, while the sum is 21.

The square root of 1381116 is about 1175.2089175972. The cubic root of 1381116 is about 111.3636317393.

Adding to 1381116 its reverse (6111831), we get a palindrome (7492947).

The spelling of 1381116 in words is "one million, three hundred eighty-one thousand, one hundred sixteen".