13272749 has 16 divisors (see below), whose sum is σ = 15832320. Its totient is φ = 10886400.

The previous prime is 13272719. The next prime is 13272757. The reversal of 13272749 is 94727231.

13272749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13272749 - 2¹⁶ = 13207213 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13272709) 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, 30437 + ... + 30869.

It is an arithmetic number, because the mean of its divisors is an integer number (989520).

Almost surely, 2^13272749 is an apocalyptic number.

It is an amenable number.

13272749 is a deficient number, since it is larger than the sum of its proper divisors (2559571).

13272749 is a wasteful number, since it uses less digits than its factorization.

13272749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620.

The product of its digits is 21168, while the sum is 35.

The square root of 13272749 is about 3643.1784200064. The cubic root of 13272749 is about 236.7665215960.

The spelling of 13272749 in words is "thirteen million, two hundred seventy-two thousand, seven hundred forty-nine".