12143074 has 4 divisors (see below), whose sum is σ = 18214614. Its totient is φ = 6071536.

The previous prime is 12143069. The next prime is 12143077. The reversal of 12143074 is 47034121.

12143074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47034121 = 17 ⋅2766713.

It can be written as a sum of positive squares in only one way, i.e., 7049025 + 5094049 = 2655^2 + 2257^2 .

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 (12143077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3035767 + ... + 3035770.

Almost surely, 2^12143074 is an apocalyptic number.

12143074 is a deficient number, since it is larger than the sum of its proper divisors (6071540).

12143074 is an equidigital number, since it uses as much as digits as its factorization.

12143074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071539.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 12143074 is about 3484.6913780133. The cubic root of 12143074 is about 229.8491386239.

Adding to 12143074 its reverse (47034121), we get a palindrome (59177195).

The spelling of 12143074 in words is "twelve million, one hundred forty-three thousand, seventy-four".