12423134 has 16 divisors (see below), whose sum is σ = 19139328. Its totient is φ = 6044952.

The previous prime is 12423133. The next prime is 12423143. The reversal of 12423134 is 43132421.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423133) 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 7 ways as a sum of consecutive naturals, for example, 26369 + ... + 26835.

It is an arithmetic number, because the mean of its divisors is an integer number (1196208).

Almost surely, 2^12423134 is an apocalyptic number.

12423134 is a deficient number, since it is larger than the sum of its proper divisors (6716194).

12423134 is a wasteful number, since it uses less digits than its factorization.

12423134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799.

The product of its digits is 576, while the sum is 20.

The square root of 12423134 is about 3524.6466489565. The cubic root of 12423134 is about 231.6027560939.

Adding to 12423134 its reverse (43132421), we get a palindrome (55555555).

The spelling of 12423134 in words is "twelve million, four hundred twenty-three thousand, one hundred thirty-four".