13636401 has 16 divisors (see below), whose sum is σ = 19160064. Its totient is φ = 8609744.

The previous prime is 13636393. The next prime is 13636411. The reversal of 13636401 is 10463631.

It is a cyclic number.

It is not a de Polignac number, because 13636401 - 2³ = 13636393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13636411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6460 + ... + 8306.

It is an arithmetic number, because the mean of its divisors is an integer number (1197504).

Almost surely, 2^13636401 is an apocalyptic number.

13636401 is the 2336-th centered pentagonal number.

It is an amenable number.

13636401 is a deficient number, since it is larger than the sum of its proper divisors (5523663).

13636401 is a wasteful number, since it uses less digits than its factorization.

13636401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 13636401 is about 3692.7497884368. The cubic root of 13636401 is about 238.9094093624.

The spelling of 13636401 in words is "thirteen million, six hundred thirty-six thousand, four hundred one".