13373665 has 4 divisors (see below), whose sum is σ = 16048404. Its totient is φ = 10698928.

The previous prime is 13373653. The next prime is 13373671. The reversal of 13373665 is 56637331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56637331 = 103 ⋅549877.

It can be written as a sum of positive squares in 2 ways, for example, as 4800481 + 8573184 = 2191^2 + 2928^2 .

It is a cyclic number.

It is not a de Polignac number, because 13373665 - 2²¹ = 11276513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13373665.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1337362 + ... + 1337371.

It is an arithmetic number, because the mean of its divisors is an integer number (4012101).

Almost surely, 2^13373665 is an apocalyptic number.

It is an amenable number.

13373665 is a deficient number, since it is larger than the sum of its proper divisors (2674739).

13373665 is an equidigital number, since it uses as much as digits as its factorization.

13373665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674738.

The product of its digits is 34020, while the sum is 34.

The square root of 13373665 is about 3657.0021875848. The cubic root of 13373665 is about 237.3650720207.

The spelling of 13373665 in words is "thirteen million, three hundred seventy-three thousand, six hundred sixty-five".