13839165 has 12 divisors (see below), whose sum is σ = 23987964. Its totient is φ = 7380864.

The previous prime is 13839149. The next prime is 13839179. The reversal of 13839165 is 56193831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4235364 + 9603801 = 2058^2 + 3099^2 .

It is not a de Polignac number, because 13839165 - 2⁴ = 13839149 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153724 + ... + 153813.

It is an arithmetic number, because the mean of its divisors is an integer number (1998997).

Almost surely, 2^13839165 is an apocalyptic number.

13839165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13839165 is a deficient number, since it is larger than the sum of its proper divisors (10148799).

13839165 is a wasteful number, since it uses less digits than its factorization.

13839165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307548 (or 307545 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 13839165 is about 3720.1028211597. The cubic root of 13839165 is about 240.0877283450.

The spelling of 13839165 in words is "thirteen million, eight hundred thirty-nine thousand, one hundred sixty-five".