13129743 has 16 divisors (see below), whose sum is σ = 19460736. Its totient is φ = 7806240.

The previous prime is 13129693. The next prime is 13129747. The reversal of 13129743 is 34792131.

13129743 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13129743 - 2⁹ = 13129231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13129743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13129747) 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, 2005 + ... + 5502.

It is an arithmetic number, because the mean of its divisors is an integer number (1216296).

Almost surely, 2^13129743 is an apocalyptic number.

13129743 is a deficient number, since it is larger than the sum of its proper divisors (6330993).

13129743 is a wasteful number, since it uses less digits than its factorization.

13129743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7574.

The product of its digits is 4536, while the sum is 30.

The square root of 13129743 is about 3623.4987236095. The cubic root of 13129743 is about 235.9131095907.

The spelling of 13129743 in words is "thirteen million, one hundred twenty-nine thousand, seven hundred forty-three".