13089457 has 4 divisors (see below), whose sum is σ = 13110336. Its totient is φ = 13068580.

The previous prime is 13089451. The next prime is 13089467. The reversal of 13089457 is 75498031.

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: 75498031 = 7 ⋅10785433.

It is a cyclic number.

It is not a de Polignac number, because 13089457 - 2¹⁹ = 12565169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13089451) 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, 9469 + ... + 10762.

It is an arithmetic number, because the mean of its divisors is an integer number (3277584).

Almost surely, 2^13089457 is an apocalyptic number.

It is an amenable number.

13089457 is a deficient number, since it is larger than the sum of its proper divisors (20879).

13089457 is an equidigital number, since it uses as much as digits as its factorization.

13089457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20878.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 13089457 is about 3617.9354610054. The cubic root of 13089457 is about 235.6715782699.

The spelling of 13089457 in words is "thirteen million, eighty-nine thousand, four hundred fifty-seven".