12512423 has 8 divisors (see below), whose sum is σ = 15600000. Its totient is φ = 9749880.

The previous prime is 12512417. The next prime is 12512443. The reversal of 12512423 is 32421521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12512423 - 2⁴ = 12512407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12512395 and 12512404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512413) 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, 81173 + ... + 81326.

It is an arithmetic number, because the mean of its divisors is an integer number (1950000).

Almost surely, 2^12512423 is an apocalyptic number.

12512423 is a deficient number, since it is larger than the sum of its proper divisors (3087577).

12512423 is a wasteful number, since it uses less digits than its factorization.

12512423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162517.

The product of its digits is 480, while the sum is 20.

The square root of 12512423 is about 3537.2903471443. The cubic root of 12512423 is about 232.1562995022.

Adding to 12512423 its reverse (32421521), we get a palindrome (44933944).

The spelling of 12512423 in words is "twelve million, five hundred twelve thousand, four hundred twenty-three".