12435601 has 4 divisors (see below), whose sum is σ = 12482100. Its totient is φ = 12389104.

The previous prime is 12435559. The next prime is 12435611. The reversal of 12435601 is 10653421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10653421 = 257 ⋅41453.

It can be written as a sum of positive squares in 2 ways, for example, as 7700625 + 4734976 = 2775^2 + 2176^2 .

It is a cyclic number.

It is not a de Polignac number, because 12435601 - 2⁷ = 12435473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12435611) 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, 22846 + ... + 23383.

It is an arithmetic number, because the mean of its divisors is an integer number (3120525).

Almost surely, 2^12435601 is an apocalyptic number.

It is an amenable number.

12435601 is a deficient number, since it is larger than the sum of its proper divisors (46499).

12435601 is an equidigital number, since it uses as much as digits as its factorization.

12435601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46498.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12435601 is about 3526.4147515572. The cubic root of 12435601 is about 231.6802037072.

The spelling of 12435601 in words is "twelve million, four hundred thirty-five thousand, six hundred one".