1380065 has 16 divisors (see below), whose sum is σ = 1776000. Its totient is φ = 1026432.

The previous prime is 1380053. The next prime is 1380083. The reversal of 1380065 is 5600831.

It is a cyclic number.

It is not a de Polignac number, because 1380065 - 2⁸ = 1379809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1380065.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6836 + ... + 7034.

It is an arithmetic number, because the mean of its divisors is an integer number (111000).

2^1380065 is an apocalyptic number.

It is an amenable number.

1380065 is a deficient number, since it is larger than the sum of its proper divisors (395935).

1380065 is a wasteful number, since it uses less digits than its factorization.

1380065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1380065 is about 1174.7616779586. The cubic root of 1380065 is about 111.3353761164.

Adding to 1380065 its reverse (5600831), we get a palindrome (6980896).

The spelling of 1380065 in words is "one million, three hundred eighty thousand, sixty-five".