12571423 has 4 divisors (see below), whose sum is σ = 12578560. Its totient is φ = 12564288.

The previous prime is 12571421. The next prime is 12571439. The reversal of 12571423 is 32417521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12571423 - 2¹ = 12571421 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 (12571421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186 + ... + 5152.

It is an arithmetic number, because the mean of its divisors is an integer number (3144640).

Almost surely, 2^12571423 is an apocalyptic number.

12571423 is a deficient number, since it is larger than the sum of its proper divisors (7137).

12571423 is an equidigital number, since it uses as much as digits as its factorization.

12571423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7136.

The product of its digits is 1680, while the sum is 25.

The square root of 12571423 is about 3545.6202560342. The cubic root of 12571423 is about 232.5206240617.

Adding to 12571423 its reverse (32417521), we get a palindrome (44988944).

The spelling of 12571423 in words is "twelve million, five hundred seventy-one thousand, four hundred twenty-three".