13188401 has 4 divisors (see below), whose sum is σ = 13495152. Its totient is φ = 12881652.

The previous prime is 13188397. The next prime is 13188421. The reversal of 13188401 is 10488131.

13188401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 10488131 = 37 ⋅283463.

It is a cyclic number.

It is not a de Polignac number, because 13188401 - 2² = 13188397 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 (13188421) 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, 153311 + ... + 153396.

It is an arithmetic number, because the mean of its divisors is an integer number (3373788).

Almost surely, 2^13188401 is an apocalyptic number.

It is an amenable number.

13188401 is a deficient number, since it is larger than the sum of its proper divisors (306751).

13188401 is an equidigital number, since it uses as much as digits as its factorization.

13188401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306750.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 13188401 is about 3631.5838142607. The cubic root of 13188401 is about 236.2639068734.

The spelling of 13188401 in words is "thirteen million, one hundred eighty-eight thousand, four hundred one".