13500289 has 4 divisors (see below), whose sum is σ = 14727600. Its totient is φ = 12272980.

The previous prime is 13500281. The next prime is 13500307. The reversal of 13500289 is 98200531.

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.

It is a cyclic number.

It is not a de Polignac number, because 13500289 - 2³ = 13500281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13500281) 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, 613639 + ... + 613660.

It is an arithmetic number, because the mean of its divisors is an integer number (3681900).

Almost surely, 2^13500289 is an apocalyptic number.

It is an amenable number.

13500289 is a deficient number, since it is larger than the sum of its proper divisors (1227311).

13500289 is a wasteful number, since it uses less digits than its factorization.

13500289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227310.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 13500289 is about 3674.2739418829. The cubic root of 13500289 is about 238.1118568902. Note that the first 3 decimals are identical.

The spelling of 13500289 in words is "thirteen million, five hundred thousand, two hundred eighty-nine".