12129734 has 8 divisors (see below), whose sum is σ = 18364968. Its totient is φ = 6008080.

The previous prime is 12129731. The next prime is 12129737. The reversal of 12129734 is 43792121.

12129734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12129731) and next prime (12129737).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12129697 and 12129706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12129731) 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, 28127 + ... + 28554.

It is an arithmetic number, because the mean of its divisors is an integer number (2295621).

Almost surely, 2^12129734 is an apocalyptic number.

12129734 is a deficient number, since it is larger than the sum of its proper divisors (6235234).

12129734 is a wasteful number, since it uses less digits than its factorization.

12129734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56790.

The product of its digits is 3024, while the sum is 29.

The square root of 12129734 is about 3482.7767657431. The cubic root of 12129734 is about 229.7649394335.

The spelling of 12129734 in words is "twelve million, one hundred twenty-nine thousand, seven hundred thirty-four".