13572249 has 4 divisors (see below), whose sum is σ = 18096336. Its totient is φ = 9048164.

The previous prime is 13572227. The next prime is 13572259. The reversal of 13572249 is 94227531.

13572249 is digitally balanced in base 2 and base 4, because in such bases 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13572249 - 2⁵ = 13572217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13572259) 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, 2262039 + ... + 2262044.

It is an arithmetic number, because the mean of its divisors is an integer number (4524084).

Almost surely, 2^13572249 is an apocalyptic number.

It is an amenable number.

13572249 is a deficient number, since it is larger than the sum of its proper divisors (4524087).

13572249 is an equidigital number, since it uses as much as digits as its factorization.

13572249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524086.

The product of its digits is 15120, while the sum is 33.

The square root of 13572249 is about 3684.0533383761. The cubic root of 13572249 is about 238.5341731641.

The spelling of 13572249 in words is "thirteen million, five hundred seventy-two thousand, two hundred forty-nine".