13443601 has 4 divisors (see below), whose sum is σ = 13452912. Its totient is φ = 13434292.

The previous prime is 13443589. The next prime is 13443623. The reversal of 13443601 is 10634431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13443601 - 2¹⁷ = 13312529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13443631) 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, 1975 + ... + 5548.

It is an arithmetic number, because the mean of its divisors is an integer number (3363228).

Almost surely, 2^13443601 is an apocalyptic number.

It is an amenable number.

13443601 is a deficient number, since it is larger than the sum of its proper divisors (9311).

13443601 is an equidigital number, since it uses as much as digits as its factorization.

13443601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9310.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 13443601 is about 3666.5516497112. The cubic root of 13443601 is about 237.7781104038.

The spelling of 13443601 in words is "thirteen million, four hundred forty-three thousand, six hundred one".