13002743 has 4 divisors (see below), whose sum is σ = 14002968. Its totient is φ = 12002520.

The previous prime is 13002721. The next prime is 13002767. The reversal of 13002743 is 34720031.

13002743 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34720031 = 31 ⋅1120001.

It is a cyclic number.

It is not a de Polignac number, because 13002743 - 2⁸ = 13002487 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 (13002793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500093 + ... + 500118.

It is an arithmetic number, because the mean of its divisors is an integer number (3500742).

Almost surely, 2^13002743 is an apocalyptic number.

13002743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13002743 is a deficient number, since it is larger than the sum of its proper divisors (1000225).

13002743 is a wasteful number, since it uses less digits than its factorization.

13002743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000224.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 13002743 is about 3605.9316410603. The cubic root of 13002743 is about 235.1500053297.

Adding to 13002743 its reverse (34720031), we get a palindrome (47722774).

The spelling of 13002743 in words is "thirteen million, two thousand, seven hundred forty-three".