13561201 has 8 divisors (see below), whose sum is σ = 13946184. Its totient is φ = 13178880.

The previous prime is 13561199. The next prime is 13561259. The reversal of 13561201 is 10216531.

It can be written as a sum of positive squares in 4 ways, for example, as 608400 + 12952801 = 780^2 + 3599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13561201 - 2¹ = 13561199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13561271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14005 + ... + 14941.

It is an arithmetic number, because the mean of its divisors is an integer number (1743273).

Almost surely, 2^13561201 is an apocalyptic number.

It is an amenable number.

13561201 is a deficient number, since it is larger than the sum of its proper divisors (384983).

13561201 is an equidigital number, since it uses as much as digits as its factorization.

13561201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 13561201 is about 3682.5535977091. The cubic root of 13561201 is about 238.4694322129.

Adding to 13561201 its reverse (10216531), we get a palindrome (23777732).

The spelling of 13561201 in words is "thirteen million, five hundred sixty-one thousand, two hundred one".