13861365 has 24 divisors (see below), whose sum is σ = 25800480. Its totient is φ = 6336288.

The previous prime is 13861363. The next prime is 13861369. The reversal of 13861365 is 56316831.

It is not a de Polignac number, because 13861365 - 2¹ = 13861363 is a prime.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13861361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8695 + ... + 10164.

It is an arithmetic number, because the mean of its divisors is an integer number (1075020).

Almost surely, 2^13861365 is an apocalyptic number.

13861365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13861365 is a deficient number, since it is larger than the sum of its proper divisors (11939115).

13861365 is a wasteful number, since it uses less digits than its factorization.

13861365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18881 (or 18874 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 13861365 is about 3723.0854140081. The cubic root of 13861365 is about 240.2160381119.

The spelling of 13861365 in words is "thirteen million, eight hundred sixty-one thousand, three hundred sixty-five".