13673143 has 4 divisors (see below), whose sum is σ = 14916168. Its totient is φ = 12430120.

The previous prime is 13673137. The next prime is 13673173. The reversal of 13673143 is 34137631.

It is a happy number.

13673143 is digitally balanced in base 2, 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: 34137631 = 11 ⋅3103421.

It is a cyclic number.

It is not a de Polignac number, because 13673143 - 2⁵ = 13673111 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 (13673173) 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, 621496 + ... + 621517.

It is an arithmetic number, because the mean of its divisors is an integer number (3729042).

Almost surely, 2^13673143 is an apocalyptic number.

13673143 is a deficient number, since it is larger than the sum of its proper divisors (1243025).

13673143 is a wasteful number, since it uses less digits than its factorization.

13673143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243024.

The product of its digits is 4536, while the sum is 28.

The square root of 13673143 is about 3697.7213253570. The cubic root of 13673143 is about 239.1237899129.

The spelling of 13673143 in words is "thirteen million, six hundred seventy-three thousand, one hundred forty-three".