12129094 has 4 divisors (see below), whose sum is σ = 18193644. Its totient is φ = 6064546.

The previous prime is 12129083. The next prime is 12129101. The reversal of 12129094 is 49092121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49092121 = 13 ⋅3776317.

It is a super-2 number, since 2×12129094² = 294229842521672, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3032272 + ... + 3032275.

It is an arithmetic number, because the mean of its divisors is an integer number (4548411).

Almost surely, 2^12129094 is an apocalyptic number.

12129094 is a deficient number, since it is larger than the sum of its proper divisors (6064550).

12129094 is an equidigital number, since it uses as much as digits as its factorization.

12129094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6064549.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 12129094 is about 3482.6848838217. The cubic root of 12129094 is about 229.7608983405.

The spelling of 12129094 in words is "twelve million, one hundred twenty-nine thousand, ninety-four".