13140743 has 16 divisors (see below), whose sum is σ = 16502784. Its totient is φ = 10164960.

The previous prime is 13140731. The next prime is 13140749. The reversal of 13140743 is 34704131.

It is a cyclic number.

It is not a de Polignac number, because 13140743 - 2⁴ = 13140727 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 (13140749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11546 + ... + 12632.

It is an arithmetic number, because the mean of its divisors is an integer number (1031424).

Almost surely, 2^13140743 is an apocalyptic number.

13140743 is a deficient number, since it is larger than the sum of its proper divisors (3362041).

13140743 is a wasteful number, since it uses less digits than its factorization.

13140743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 13140743 is about 3625.0162758255. The cubic root of 13140743 is about 235.9789732775.

Adding to 13140743 its reverse (34704131), we get a palindrome (47844874).

The spelling of 13140743 in words is "thirteen million, one hundred forty thousand, seven hundred forty-three".