13203289 has 8 divisors (see below), whose sum is σ = 14500800. Its totient is φ = 11922000.

The previous prime is 13203283. The next prime is 13203293. The reversal of 13203289 is 98230231.

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 13203289 - 2¹³ = 13195097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13203283) 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, 2314 + ... + 5635.

It is an arithmetic number, because the mean of its divisors is an integer number (1812600).

Almost surely, 2^13203289 is an apocalyptic number.

It is an amenable number.

13203289 is a deficient number, since it is larger than the sum of its proper divisors (1297511).

13203289 is a wasteful number, since it uses less digits than its factorization.

13203289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8111.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13203289 is about 3633.6330304531. The cubic root of 13203289 is about 236.3527772445.

It can be divided in two parts, 13 and 203289, that added together give a palindrome (203302).

The spelling of 13203289 in words is "thirteen million, two hundred three thousand, two hundred eighty-nine".