12409613 has 2 divisors, whose sum is σ = 12409614. Its totient is φ = 12409612.

The previous prime is 12409601. The next prime is 12409619. The reversal of 12409613 is 31690421.

12409613 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8421604 + 3988009 = 2902^2 + 1997^2 .

It is a cyclic number.

It is not a de Polignac number, because 12409613 - 2⁶ = 12409549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12409619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6204806 + 6204807.

It is an arithmetic number, because the mean of its divisors is an integer number (6204807).

Almost surely, 2^12409613 is an apocalyptic number.

It is an amenable number.

12409613 is a deficient number, since it is larger than the sum of its proper divisors (1).

12409613 is an equidigital number, since it uses as much as digits as its factorization.

12409613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 12409613 is about 3522.7280621700. The cubic root of 12409613 is about 231.5187022195.

The spelling of 12409613 in words is "twelve million, four hundred nine thousand, six hundred thirteen".