13740065 has 4 divisors (see below), whose sum is σ = 16488084. Its totient is φ = 10992048.

The previous prime is 13740053. The next prime is 13740107. The reversal of 13740065 is 56004731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4443664 + 9296401 = 2108^2 + 3049^2 .

It is a cyclic number.

It is not a de Polignac number, because 13740065 - 2⁴ = 13740049 is a prime.

It is a Duffinian number.

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, 1374002 + ... + 1374011.

It is an arithmetic number, because the mean of its divisors is an integer number (4122021).

Almost surely, 2^13740065 is an apocalyptic number.

It is an amenable number.

13740065 is a deficient number, since it is larger than the sum of its proper divisors (2748019).

13740065 is an equidigital number, since it uses as much as digits as its factorization.

13740065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748018.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 13740065 is about 3706.7593663468. The cubic root of 13740065 is about 239.5132786399.

Adding to 13740065 its reverse (56004731), we get a palindrome (69744796).

The spelling of 13740065 in words is "thirteen million, seven hundred forty thousand, sixty-five".