1381318 has 8 divisors (see below), whose sum is σ = 2193912. Its totient is φ = 650016.

The previous prime is 1381313. The next prime is 1381327. The reversal of 1381318 is 8131831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1381292 and 1381301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20280 + ... + 20347.

It is an arithmetic number, because the mean of its divisors is an integer number (274239).

2^1381318 is an apocalyptic number.

1381318 is a deficient number, since it is larger than the sum of its proper divisors (812594).

1381318 is a wasteful number, since it uses less digits than its factorization.

1381318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40646.

The product of its digits is 576, while the sum is 25.

The square root of 1381318 is about 1175.2948566211. The cubic root of 1381318 is about 111.3690607684.

It can be divided in two parts, 13813 and 18, that added together give a palindrome (13831).

The spelling of 1381318 in words is "one million, three hundred eighty-one thousand, three hundred eighteen".