13861065 has 16 divisors (see below), whose sum is σ = 23142528. Its totient is φ = 7070976.

The previous prime is 13861063. The next prime is 13861073. The reversal of 13861065 is 56016831.

It is not a de Polignac number, because 13861065 - 2¹ = 13861063 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13861063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19744 + ... + 20433.

It is an arithmetic number, because the mean of its divisors is an integer number (1446408).

Almost surely, 2^13861065 is an apocalyptic number.

13861065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13861065 is a deficient number, since it is larger than the sum of its proper divisors (9281463).

13861065 is a wasteful number, since it uses less digits than its factorization.

13861065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40208.

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

The square root of 13861065 is about 3723.0451246258. The cubic root of 13861065 is about 240.2143051097.

Adding to 13861065 its reverse (56016831), we get a palindrome (69877896).

The spelling of 13861065 in words is "thirteen million, eight hundred sixty-one thousand, sixty-five".