12609613 has 2 divisors, whose sum is σ = 12609614. Its totient is φ = 12609612.

The previous prime is 12609607. The next prime is 12609643. The reversal of 12609613 is 31690621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12376324 + 233289 = 3518^2 + 483^2 .

It is a cyclic number.

It is not a de Polignac number, because 12609613 - 2⁹ = 12609101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12609643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6304806 + 6304807.

It is an arithmetic number, because the mean of its divisors is an integer number (6304807).

Almost surely, 2^12609613 is an apocalyptic number.

It is an amenable number.

12609613 is a deficient number, since it is larger than the sum of its proper divisors (1).

12609613 is an equidigital number, since it uses as much as digits as its factorization.

12609613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 12609613 is about 3551.0016896645. The cubic root of 12609613 is about 232.7558396986.

The spelling of 12609613 in words is "twelve million, six hundred nine thousand, six hundred thirteen".