12109862 has 4 divisors (see below), whose sum is σ = 18164796. Its totient is φ = 6054930.

The previous prime is 12109861. The next prime is 12109873. The reversal of 12109862 is 26890121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12109861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3027464 + ... + 3027467.

It is an arithmetic number, because the mean of its divisors is an integer number (4541199).

Almost surely, 2^12109862 is an apocalyptic number.

12109862 is a deficient number, since it is larger than the sum of its proper divisors (6054934).

12109862 is an equidigital number, since it uses as much as digits as its factorization.

12109862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6054933.

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

The square root of 12109862 is about 3479.9227002909. The cubic root of 12109862 is about 229.6393971212.

Adding to 12109862 its reverse (26890121), we get a palindrome (38999983).

The spelling of 12109862 in words is "twelve million, one hundred nine thousand, eight hundred sixty-two".