13134661 has 2 divisors, whose sum is σ = 13134662. Its totient is φ = 13134660.

The previous prime is 13134631. The next prime is 13134683. The reversal of 13134661 is 16643131.

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., 12737761 + 396900 = 3569^2 + 630^2 .

It is a cyclic number.

It is not a de Polignac number, because 13134661 - 2⁵ = 13134629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13134631) 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 as a sum of consecutive naturals, namely, 6567330 + 6567331.

It is an arithmetic number, because the mean of its divisors is an integer number (6567331).

Almost surely, 2^13134661 is an apocalyptic number.

It is an amenable number.

13134661 is a deficient number, since it is larger than the sum of its proper divisors (1).

13134661 is an equidigital number, since it uses as much as digits as its factorization.

13134661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 13134661 is about 3624.1772859506. The cubic root of 13134661 is about 235.9425611914.

Adding to 13134661 its reverse (16643131), we get a palindrome (29777792).

It can be divided in two parts, 131 and 34661, that multiplied together give a triangular number (4540591 = T₃₀₁₃).

The spelling of 13134661 in words is "thirteen million, one hundred thirty-four thousand, six hundred sixty-one".