12435506 has 8 divisors (see below), whose sum is σ = 18717804. Its totient is φ = 6196240.

The previous prime is 12435503. The next prime is 12435509. The reversal of 12435506 is 60553421.

It is an interprime number because it is at equal distance from previous prime (12435503) and next prime (12435509).

It can be written as a sum of positive squares in 2 ways, for example, as 8791225 + 3644281 = 2965^2 + 1909^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12435503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10025 + ... + 11196.

Almost surely, 2^12435506 is an apocalyptic number.

12435506 is a deficient number, since it is larger than the sum of its proper divisors (6282298).

12435506 is a wasteful number, since it uses less digits than its factorization.

12435506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21516.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 12435506 is about 3526.4012817602. The cubic root of 12435506 is about 231.6796137431.

Adding to 12435506 its reverse (60553421), we get a palindrome (72988927).

The spelling of 12435506 in words is "twelve million, four hundred thirty-five thousand, five hundred six".