13140365 has 32 divisors (see below), whose sum is σ = 18896640. Its totient is φ = 8584704.

The previous prime is 13140359. The next prime is 13140367. The reversal of 13140365 is 56304131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13140365 - 2⁸ = 13140109 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13140365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94466 + ... + 94604.

It is an arithmetic number, because the mean of its divisors is an integer number (590520).

Almost surely, 2^13140365 is an apocalyptic number.

It is an amenable number.

13140365 is a deficient number, since it is larger than the sum of its proper divisors (5756275).

13140365 is a wasteful number, since it uses less digits than its factorization.

13140365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13140365 is about 3624.9641377536. The cubic root of 13140365 is about 235.9767105716.

Adding to 13140365 its reverse (56304131), we get a palindrome (69444496).

It can be divided in two parts, 13140 and 365, that multiplied together give a square (4796100 = 2190²).

The spelling of 13140365 in words is "thirteen million, one hundred forty thousand, three hundred sixty-five".