13133449 has 8 divisors (see below), whose sum is σ = 15038208. Its totient is φ = 11235840.

The previous prime is 13133423. The next prime is 13133467. The reversal of 13133449 is 94433131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13133449 - 2⁷ = 13133321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13133479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3024 + ... + 5950.

It is an arithmetic number, because the mean of its divisors is an integer number (1879776).

Almost surely, 2^13133449 is an apocalyptic number.

It is an amenable number.

13133449 is a deficient number, since it is larger than the sum of its proper divisors (1904759).

13133449 is an equidigital number, since it uses as much as digits as its factorization.

13133449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575.

The product of its digits is 3888, while the sum is 28.

The square root of 13133449 is about 3624.0100717299. The cubic root of 13133449 is about 235.9353037732.

The spelling of 13133449 in words is "thirteen million, one hundred thirty-three thousand, four hundred forty-nine".