13545289 has 4 divisors (see below), whose sum is σ = 13597056. Its totient is φ = 13493524.

The previous prime is 13545283. The next prime is 13545313. The reversal of 13545289 is 98254531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98254531 = 31 ⋅3169501.

It is a cyclic number.

It is not a de Polignac number, because 13545289 - 2³ = 13545281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13545281) 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, 25489 + ... + 26014.

It is an arithmetic number, because the mean of its divisors is an integer number (3399264).

Almost surely, 2^13545289 is an apocalyptic number.

It is an amenable number.

13545289 is a deficient number, since it is larger than the sum of its proper divisors (51767).

13545289 is an equidigital number, since it uses as much as digits as its factorization.

13545289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51766.

The product of its digits is 43200, while the sum is 37.

The square root of 13545289 is about 3680.3925062417. The cubic root of 13545289 is about 238.3761265469.

The spelling of 13545289 in words is "thirteen million, five hundred forty-five thousand, two hundred eighty-nine".