12435613 has 2 divisors, whose sum is σ = 12435614. Its totient is φ = 12435612.

The previous prime is 12435611. The next prime is 12435629. The reversal of 12435613 is 31653421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10413529 + 2022084 = 3227^2 + 1422^2 .

It is an emirp because it is prime and its reverse (31653421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12435613 - 2¹ = 12435611 is a prime.

Together with 12435611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12435611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6217806 + 6217807.

It is an arithmetic number, because the mean of its divisors is an integer number (6217807).

Almost surely, 2^12435613 is an apocalyptic number.

It is an amenable number.

12435613 is a deficient number, since it is larger than the sum of its proper divisors (1).

12435613 is an equidigital number, since it uses as much as digits as its factorization.

12435613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 12435613 is about 3526.4164530015. The cubic root of 12435613 is about 231.6802782288.

The spelling of 12435613 in words is "twelve million, four hundred thirty-five thousand, six hundred thirteen".