13135601 has 2 divisors, whose sum is σ = 13135602. Its totient is φ = 13135600.

The previous prime is 13135541. The next prime is 13135613. The reversal of 13135601 is 10653131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7845601 + 5290000 = 2801^2 + 2300^2 .

It is a cyclic number.

It is not a de Polignac number, because 13135601 - 2¹⁰ = 13134577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13135651) 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, 6567800 + 6567801.

It is an arithmetic number, because the mean of its divisors is an integer number (6567801).

Almost surely, 2^13135601 is an apocalyptic number.

It is an amenable number.

13135601 is a deficient number, since it is larger than the sum of its proper divisors (1).

13135601 is an equidigital number, since it uses as much as digits as its factorization.

13135601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 13135601 is about 3624.3069682354. The cubic root of 13135601 is about 235.9481895746.

Adding to 13135601 its reverse (10653131), we get a palindrome (23788732).

The spelling of 13135601 in words is "thirteen million, one hundred thirty-five thousand, six hundred one".