12923143 has 4 divisors (see below), whose sum is σ = 12977008. Its totient is φ = 12869280.

The previous prime is 12923123. The next prime is 12923153. The reversal of 12923143 is 34132921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12923143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12923123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26571 + ... + 27052.

It is an arithmetic number, because the mean of its divisors is an integer number (3244252).

Almost surely, 2^12923143 is an apocalyptic number.

12923143 is a deficient number, since it is larger than the sum of its proper divisors (53865).

12923143 is an equidigital number, since it uses as much as digits as its factorization.

12923143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53864.

The product of its digits is 1296, while the sum is 25.

The square root of 12923143 is about 3594.8773275315. The cubic root of 12923143 is about 234.6691768718.

The spelling of 12923143 in words is "twelve million, nine hundred twenty-three thousand, one hundred forty-three".