12106129 has 4 divisors (see below), whose sum is σ = 13835584. Its totient is φ = 10376676.

The previous prime is 12106117. The next prime is 12106147. The reversal of 12106129 is 92160121.

12106129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92160121 = 233 ⋅395537.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12106129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12106109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864717 + ... + 864730.

It is an arithmetic number, because the mean of its divisors is an integer number (3458896).

Almost surely, 2^12106129 is an apocalyptic number.

It is an amenable number.

12106129 is a deficient number, since it is larger than the sum of its proper divisors (1729455).

12106129 is an equidigital number, since it uses as much as digits as its factorization.

12106129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729454.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 12106129 is about 3479.3862964609. The cubic root of 12106129 is about 229.6157983945.

The spelling of 12106129 in words is "twelve million, one hundred six thousand, one hundred twenty-nine".