12118394 has 4 divisors (see below), whose sum is σ = 18177594. Its totient is φ = 6059196.

The previous prime is 12118391. The next prime is 12118429. The reversal of 12118394 is 49381121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11992369 + 126025 = 3463^2 + 355^2 .

It is not an unprimeable number, because it can be changed into a prime (12118391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3029597 + ... + 3029600.

Almost surely, 2^12118394 is an apocalyptic number.

12118394 is a deficient number, since it is larger than the sum of its proper divisors (6059200).

12118394 is an equidigital number, since it uses as much as digits as its factorization.

12118394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6059199.

The product of its digits is 1728, while the sum is 29.

The square root of 12118394 is about 3481.1483737411. The cubic root of 12118394 is about 229.6933152522.

The spelling of 12118394 in words is "twelve million, one hundred eighteen thousand, three hundred ninety-four".