13912165 has 8 divisors (see below), whose sum is σ = 16724088. Its totient is φ = 11110080.

The previous prime is 13912163. The next prime is 13912169. The reversal of 13912165 is 56121931.

It can be written as a sum of positive squares in 4 ways, for example, as 2982529 + 10929636 = 1727^2 + 3306^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13912165 - 2¹ = 13912163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13912163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135 + ... + 5395.

It is an arithmetic number, because the mean of its divisors is an integer number (2090511).

Almost surely, 2^13912165 is an apocalyptic number.

It is an amenable number.

13912165 is a deficient number, since it is larger than the sum of its proper divisors (2811923).

13912165 is an equidigital number, since it uses as much as digits as its factorization.

13912165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919.

The product of its digits is 1620, while the sum is 28.

The square root of 13912165 is about 3729.9014732296. The cubic root of 13912165 is about 240.5091332870.

The spelling of 13912165 in words is "thirteen million, nine hundred twelve thousand, one hundred sixty-five".