12143007 has 8 divisors (see below), whose sum is σ = 17989680. Its totient is φ = 8095320.

The previous prime is 12142997. The next prime is 12143009. The reversal of 12143007 is 70034121.

12143007 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12143007 - 2¹¹ = 12140959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224844 + ... + 224897.

It is an arithmetic number, because the mean of its divisors is an integer number (2248710).

Almost surely, 2^12143007 is an apocalyptic number.

12143007 is a deficient number, since it is larger than the sum of its proper divisors (5846673).

12143007 is an equidigital number, since it uses as much as digits as its factorization.

12143007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449750 (or 449744 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 12143007 is about 3484.6817645231. The cubic root of 12143007 is about 229.8487158886.

Adding to 12143007 its reverse (70034121), we get a palindrome (82177128).

The spelling of 12143007 in words is "twelve million, one hundred forty-three thousand, seven".