1386165 has 32 divisors (see below), whose sum is σ = 2506752. Its totient is φ = 648000.

The previous prime is 1386149. The next prime is 1386167. The reversal of 1386165 is 5616831.

It is not a de Polignac number, because 1386165 - 2⁴ = 1386149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386167) 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 31 ways as a sum of consecutive naturals, for example, 4980 + ... + 5250.

It is an arithmetic number, because the mean of its divisors is an integer number (78336).

2^1386165 is an apocalyptic number.

1386165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1386165 is a deficient number, since it is larger than the sum of its proper divisors (1120587).

1386165 is a wasteful number, since it uses less digits than its factorization.

1386165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321.

The product of its digits is 4320, while the sum is 30.

The square root of 1386165 is about 1177.3550866243. The cubic root of 1386165 is about 111.4991721737.

It can be divided in two parts, 1386 and 165, that added together give a palindrome (1551).

The spelling of 1386165 in words is "one million, three hundred eighty-six thousand, one hundred sixty-five".