12118258 has 8 divisors (see below), whose sum is σ = 18270252. Its totient is φ = 6028176.

The previous prime is 12118243. The next prime is 12118273. The reversal of 12118258 is 85281121.

It is an interprime number because it is at equal distance from previous prime (12118243) and next prime (12118273).

It can be written as a sum of positive squares in 2 ways, for example, as 11202409 + 915849 = 3347^2 + 957^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 14985 + ... + 15772.

Almost surely, 2^12118258 is an apocalyptic number.

12118258 is a deficient number, since it is larger than the sum of its proper divisors (6151994).

12118258 is a wasteful number, since it uses less digits than its factorization.

12118258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30956.

The product of its digits is 1280, while the sum is 28.

The square root of 12118258 is about 3481.1288399024. The cubic root of 12118258 is about 229.6924559962.

Adding to 12118258 its reverse (85281121), we get a palindrome (97399379).

The spelling of 12118258 in words is "twelve million, one hundred eighteen thousand, two hundred fifty-eight".