12134430 has 192 divisors, whose sum is σ = 42052608. Its totient is φ = 2350080.

The previous prime is 12134429. The next prime is 12134431. The reversal of 12134430 is 3443121.

It is an interprime number because it is at equal distance from previous prime (12134429) and next prime (12134431).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12134431) by changing a digit.

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 in 95 ways as a sum of consecutive naturals, for example, 117759 + ... + 117861.

It is an arithmetic number, because the mean of its divisors is an integer number (219024).

Almost surely, 2^12134430 is an apocalyptic number.

12134430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12134430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21026304).

12134430 is an abundant number, since it is smaller than the sum of its proper divisors (29918178).

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

12134430 is a wasteful number, since it uses less digits than its factorization.

12134430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12134430 is about 3483.4508752098. The cubic root of 12134430 is about 229.7945866059.

Adding to 12134430 its reverse (3443121), we get a palindrome (15577551).

The spelling of 12134430 in words is "twelve million, one hundred thirty-four thousand, four hundred thirty".