13133849 has 4 divisors (see below), whose sum is σ = 13349220. Its totient is φ = 12918480.

The previous prime is 13133803. The next prime is 13133867. The reversal of 13133849 is 94833131.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1607824 + 11526025 = 1268^2 + 3395^2 .

It is a cyclic number.

It is not a de Polignac number, because 13133849 - 2¹⁶ = 13068313 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13133149) 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, 107594 + ... + 107715.

It is an arithmetic number, because the mean of its divisors is an integer number (3337305).

Almost surely, 2^13133849 is an apocalyptic number.

It is an amenable number.

13133849 is a deficient number, since it is larger than the sum of its proper divisors (215371).

13133849 is an equidigital number, since it uses as much as digits as its factorization.

13133849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215370.

The product of its digits is 7776, while the sum is 32.

The square root of 13133849 is about 3624.0652587943. The cubic root of 13133849 is about 235.9376990101.

The spelling of 13133849 in words is "thirteen million, one hundred thirty-three thousand, eight hundred forty-nine".