12424534 has 4 divisors (see below), whose sum is σ = 18636804. Its totient is φ = 6212266.

The previous prime is 12424523. The next prime is 12424543. The reversal of 12424534 is 43542421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43542421 = 13 ⋅3349417.

It is a junction number, because it is equal to n+sod(n) for n = 12424499 and 12424508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3106132 + ... + 3106135.

It is an arithmetic number, because the mean of its divisors is an integer number (4659201).

Almost surely, 2^12424534 is an apocalyptic number.

12424534 is a deficient number, since it is larger than the sum of its proper divisors (6212270).

12424534 is an equidigital number, since it uses as much as digits as its factorization.

12424534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6212269.

The product of its digits is 3840, while the sum is 25.

The square root of 12424534 is about 3524.8452448299. The cubic root of 12424534 is about 231.6114557687.

Adding to 12424534 its reverse (43542421), we get a palindrome (55966955).

It can be divided in two parts, 1242 and 4534, that added together give a square (5776 = 76²).

The spelling of 12424534 in words is "twelve million, four hundred twenty-four thousand, five hundred thirty-four".