13205401 has 4 divisors (see below), whose sum is σ = 14405904. Its totient is φ = 12004900.

The previous prime is 13205393. The next prime is 13205419. The reversal of 13205401 is 10450231.

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.

It is a cyclic number.

It is not a de Polignac number, because 13205401 - 2³ = 13205393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13205461) 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, 600235 + ... + 600256.

It is an arithmetic number, because the mean of its divisors is an integer number (3601476).

Almost surely, 2^13205401 is an apocalyptic number.

13205401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13205401 is a deficient number, since it is larger than the sum of its proper divisors (1200503).

13205401 is a wasteful number, since it uses less digits than its factorization.

13205401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200502.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 13205401 is about 3633.9236370623. The cubic root of 13205401 is about 236.3653789140.

Adding to 13205401 its reverse (10450231), we get a palindrome (23655632).

The spelling of 13205401 in words is "thirteen million, two hundred five thousand, four hundred one".