12153834 has 128 divisors (see below), whose sum is σ = 35020800. Its totient is φ = 3032640.

The previous prime is 12153803. The next prime is 12153847. The reversal of 12153834 is 43835121.

It is a happy number.

12153834 is a `hidden beast` number, since 121 + 538 + 3 + 4 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12153798 and 12153807.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 153807 + ... + 153885.

It is an arithmetic number, because the mean of its divisors is an integer number (273600).

Almost surely, 2^12153834 is an apocalyptic number.

12153834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12153834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17510400).

12153834 is an abundant number, since it is smaller than the sum of its proper divisors (22866966).

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

12153834 is a wasteful number, since it uses less digits than its factorization.

12153834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 139 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 12153834 is about 3486.2349318427. The cubic root of 12153834 is about 229.9170084949.

Adding to 12153834 its reverse (43835121), we get a palindrome (55988955).

The spelling of 12153834 in words is "twelve million, one hundred fifty-three thousand, eight hundred thirty-four".