13601089 has 4 divisors (see below), whose sum is σ = 13968724. Its totient is φ = 13233456.

The previous prime is 13601059. The next prime is 13601099. The reversal of 13601089 is 98010631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98010631 = 43 ⋅2279317.

It can be written as a sum of positive squares in 2 ways, for example, as 13082689 + 518400 = 3617^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 13601089 - 2⁵ = 13601057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13601009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183762 + ... + 183835.

It is an arithmetic number, because the mean of its divisors is an integer number (3492181).

Almost surely, 2^13601089 is an apocalyptic number.

It is an amenable number.

13601089 is a deficient number, since it is larger than the sum of its proper divisors (367635).

13601089 is an equidigital number, since it uses as much as digits as its factorization.

13601089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367634.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 13601089 is about 3687.9654282544. The cubic root of 13601089 is about 238.7030093095.

The spelling of 13601089 in words is "thirteen million, six hundred one thousand, eighty-nine".