13573243 has 4 divisors (see below), whose sum is σ = 14163408. Its totient is φ = 12983080.

The previous prime is 13573207. The next prime is 13573249. The reversal of 13573243 is 34237531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13573243 - 2⁹ = 13572731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13573249) 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, 295048 + ... + 295093.

It is an arithmetic number, because the mean of its divisors is an integer number (3540852).

Almost surely, 2^13573243 is an apocalyptic number.

13573243 is a deficient number, since it is larger than the sum of its proper divisors (590165).

13573243 is an equidigital number, since it uses as much as digits as its factorization.

13573243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590164.

The product of its digits is 7560, while the sum is 28.

The square root of 13573243 is about 3684.1882416619. The cubic root of 13573243 is about 238.5399962516.

The spelling of 13573243 in words is "thirteen million, five hundred seventy-three thousand, two hundred forty-three".