13140449 has 8 divisors (see below), whose sum is σ = 15301440. Its totient is φ = 11050416.

The previous prime is 13140433. The next prime is 13140461. The reversal of 13140449 is 94404131.

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

It is a cyclic number.

It is not a de Polignac number, because 13140449 - 2⁴ = 13140433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13140409) 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, 17339 + ... + 18080.

It is an arithmetic number, because the mean of its divisors is an integer number (1912680).

Almost surely, 2^13140449 is an apocalyptic number.

It is an amenable number.

13140449 is a deficient number, since it is larger than the sum of its proper divisors (2160991).

13140449 is an equidigital number, since it uses as much as digits as its factorization.

13140449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35479.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 13140449 is about 3624.9757240566. The cubic root of 13140449 is about 235.9772133989.

The spelling of 13140449 in words is "thirteen million, one hundred forty thousand, four hundred forty-nine".