13251089 has 4 divisors (see below), whose sum is σ = 13260324. Its totient is φ = 13241856.

The previous prime is 13251083. The next prime is 13251097. The reversal of 13251089 is 98015231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5326864 + 7924225 = 2308^2 + 2815^2 .

It is a cyclic number.

It is not a de Polignac number, because 13251089 - 2¹⁶ = 13185553 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13251083) 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, 1952 + ... + 5505.

It is an arithmetic number, because the mean of its divisors is an integer number (3315081).

Almost surely, 2^13251089 is an apocalyptic number.

It is an amenable number.

13251089 is a deficient number, since it is larger than the sum of its proper divisors (9235).

13251089 is an equidigital number, since it uses as much as digits as its factorization.

13251089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9234.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 13251089 is about 3640.2045272210. The cubic root of 13251089 is about 236.6376571818.

The spelling of 13251089 in words is "thirteen million, two hundred fifty-one thousand, eighty-nine".