12143234 has 4 divisors (see below), whose sum is σ = 18214854. Its totient is φ = 6071616.

The previous prime is 12143233. The next prime is 12143237. The reversal of 12143234 is 43234121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10543009 + 1600225 = 3247^2 + 1265^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12143233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3035807 + ... + 3035810.

Almost surely, 2^12143234 is an apocalyptic number.

12143234 is a deficient number, since it is larger than the sum of its proper divisors (6071620).

12143234 is an equidigital number, since it uses as much as digits as its factorization.

12143234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071619.

The product of its digits is 576, while the sum is 20.

The square root of 12143234 is about 3484.7143354944. The cubic root of 12143234 is about 229.8501481349.

Adding to 12143234 its reverse (43234121), we get a palindrome (55377355).

The spelling of 12143234 in words is "twelve million, one hundred forty-three thousand, two hundred thirty-four".