12109662 has 24 divisors (see below), whose sum is σ = 27210456. Its totient is φ = 4036392.

The previous prime is 12109651. The next prime is 12109667. The reversal of 12109662 is 26690121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12109667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11973 + ... + 12944.

It is an arithmetic number, because the mean of its divisors is an integer number (1133769).

Almost surely, 2^12109662 is an apocalyptic number.

12109662 is an abundant number, since it is smaller than the sum of its proper divisors (15100794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12109662 is an equidigital number, since it uses as much as digits as its factorization.

12109662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24934 (or 24922 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12109662 is about 3479.8939639018. The cubic root of 12109662 is about 229.6381329137.

Adding to 12109662 its reverse (26690121), we get a palindrome (38799783).

The spelling of 12109662 in words is "twelve million, one hundred nine thousand, six hundred sixty-two".