12134816 has 36 divisors (see below), whose sum is σ = 24642198. Its totient is φ = 5882112.

The previous prime is 12134807. The next prime is 12134819. The reversal of 12134816 is 61843121.

It can be written as a sum of positive squares in 3 ways, for example, as 11971600 + 163216 = 3460^2 + 404^2 .

It is not an unprimeable number, because it can be changed into a prime (12134819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43670 + ... + 43946.

Almost surely, 2^12134816 is an apocalyptic number.

12134816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12134816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12321099).

12134816 is an abundant number, since it is smaller than the sum of its proper divisors (12507382).

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

12134816 is an equidigital number, since it uses as much as digits as its factorization.

12134816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 316 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 12134816 is about 3483.5062795982. The cubic root of 12134816 is about 229.7970231925.

Adding to 12134816 its reverse (61843121), we get a palindrome (73977937).

The spelling of 12134816 in words is "twelve million, one hundred thirty-four thousand, eight hundred sixteen".