13671401 has 4 divisors (see below), whose sum is σ = 13682052. Its totient is φ = 13660752.

The previous prime is 13671373. The next prime is 13671419. The reversal of 13671401 is 10417631.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10417631 = 7 ⋅1488233.

It can be written as a sum of positive squares in 2 ways, for example, as 6885376 + 6786025 = 2624^2 + 2605^2 .

It is a cyclic number.

It is not a de Polignac number, because 13671401 - 2¹⁴ = 13655017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13671701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3086 + ... + 6071.

It is an arithmetic number, because the mean of its divisors is an integer number (3420513).

Almost surely, 2^13671401 is an apocalyptic number.

It is an amenable number.

13671401 is a deficient number, since it is larger than the sum of its proper divisors (10651).

13671401 is an equidigital number, since it uses as much as digits as its factorization.

13671401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10650.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 13671401 is about 3697.4857673830. The cubic root of 13671401 is about 239.1136344489.

The spelling of 13671401 in words is "thirteen million, six hundred seventy-one thousand, four hundred one".