13170449 has 4 divisors (see below), whose sum is σ = 13386420. Its totient is φ = 12954480.

The previous prime is 13170431. The next prime is 13170457. The reversal of 13170449 is 94407131.

13170449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 160000 + 13010449 = 400^2 + 3607^2 .

It is a cyclic number.

It is not a de Polignac number, because 13170449 - 2¹⁶ = 13104913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13170419) 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, 107894 + ... + 108015.

It is an arithmetic number, because the mean of its divisors is an integer number (3346605).

Almost surely, 2^13170449 is an apocalyptic number.

It is an amenable number.

13170449 is a deficient number, since it is larger than the sum of its proper divisors (215971).

13170449 is an equidigital number, since it uses as much as digits as its factorization.

13170449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215970.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 13170449 is about 3629.1113237265. Note that the first 3 decimals coincide. The cubic root of 13170449 is about 236.1566576934.

The spelling of 13170449 in words is "thirteen million, one hundred seventy thousand, four hundred forty-nine".