12618089 has 4 divisors (see below), whose sum is σ = 13765200. Its totient is φ = 11470980.

The previous prime is 12618083. The next prime is 12618091. The reversal of 12618089 is 98081621.

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 12618089 - 2⁸ = 12617833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12618083) 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, 573539 + ... + 573560.

It is an arithmetic number, because the mean of its divisors is an integer number (3441300).

Almost surely, 2^12618089 is an apocalyptic number.

It is an amenable number.

12618089 is a deficient number, since it is larger than the sum of its proper divisors (1147111).

12618089 is a wasteful number, since it uses less digits than its factorization.

12618089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147110.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 12618089 is about 3552.1949552354. The cubic root of 12618089 is about 232.8079797240.

The spelling of 12618089 in words is "twelve million, six hundred eighteen thousand, eighty-nine".