13408001 has 4 divisors (see below), whose sum is σ = 13415892. Its totient is φ = 13400112.

The previous prime is 13407991. The next prime is 13408007. The reversal of 13408001 is 10080431.

It is a happy number.

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: 10080431 = 19 ⋅530549.

It can be written as a sum of positive squares in 2 ways, for example, as 4734976 + 8673025 = 2176^2 + 2945^2 .

It is a cyclic number.

It is not a de Polignac number, because 13408001 - 2¹⁰ = 13406977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13408007) 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, 230 + ... + 5183.

It is an arithmetic number, because the mean of its divisors is an integer number (3353973).

Almost surely, 2^13408001 is an apocalyptic number.

It is an amenable number.

13408001 is a deficient number, since it is larger than the sum of its proper divisors (7891).

13408001 is an equidigital number, since it uses as much as digits as its factorization.

13408001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7890.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 13408001 is about 3661.6937337795. The cubic root of 13408001 is about 237.5680381246.

Adding to 13408001 its reverse (10080431), we get a palindrome (23488432).

The spelling of 13408001 in words is "thirteen million, four hundred eight thousand, one".