12258917 has 4 divisors (see below), whose sum is σ = 13373376. Its totient is φ = 11144460.

The previous prime is 12258907. The next prime is 12258941. The reversal of 12258917 is 71985221.

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 12258917 - 2¹⁸ = 11996773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12258907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557213 + ... + 557234.

It is an arithmetic number, because the mean of its divisors is an integer number (3343344).

Almost surely, 2^12258917 is an apocalyptic number.

It is an amenable number.

12258917 is a deficient number, since it is larger than the sum of its proper divisors (1114459).

12258917 is a wasteful number, since it uses less digits than its factorization.

12258917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114458.

The product of its digits is 10080, while the sum is 35.

The square root of 12258917 is about 3501.2736254112. The cubic root of 12258917 is about 230.5777347243.

The spelling of 12258917 in words is "twelve million, two hundred fifty-eight thousand, nine hundred seventeen".