12249089 has 4 divisors (see below), whose sum is σ = 12292656. Its totient is φ = 12205524.

The previous prime is 12249079. The next prime is 12249103. The reversal of 12249089 is 98094221.

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: 98094221 = 79 ⋅1241699.

It is a cyclic number.

It is not a de Polignac number, because 12249089 - 2¹⁶ = 12183553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12249019) 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, 21359 + ... + 21924.

It is an arithmetic number, because the mean of its divisors is an integer number (3073164).

Almost surely, 2^12249089 is an apocalyptic number.

It is an amenable number.

12249089 is a deficient number, since it is larger than the sum of its proper divisors (43567).

12249089 is an equidigital number, since it uses as much as digits as its factorization.

12249089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43566.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 12249089 is about 3499.8698547232. The cubic root of 12249089 is about 230.5161000293.

The spelling of 12249089 in words is "twelve million, two hundred forty-nine thousand, eighty-nine".