13816089 has 45 divisors (see below), whose sum is σ = 24422277. Its totient is φ = 7761096.

The previous prime is 13816081. The next prime is 13816163. The reversal of 13816089 is 98061831.

The square root of 13816089 is 3717.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 13816089 - 2³ = 13816081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13816081) 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 44 ways as a sum of consecutive naturals, for example, 234142 + ... + 234200.

Almost surely, 2^13816089 is an apocalyptic number.

13816089 is the 3717-th square number.

13816089 is the 1859-th centered octagonal number.

It is an amenable number.

13816089 is a deficient number, since it is larger than the sum of its proper divisors (10606188).

13816089 is an frugal number, since it uses more digits than its factorization.

13816089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The cubic root of 13816089 is about 239.9542100142.

Multiplying 13816089 by its sum of digits (36), we get a square (497379204 = 22302²).

The spelling of 13816089 in words is "thirteen million, eight hundred sixteen thousand, eighty-nine".