13132661 has 2 divisors, whose sum is σ = 13132662. Its totient is φ = 13132660.

The previous prime is 13132649. The next prime is 13132697. The reversal of 13132661 is 16623131.

It is a happy number.

13132661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11458225 + 1674436 = 3385^2 + 1294^2 .

It is a cyclic number.

It is not a de Polignac number, because 13132661 - 2¹⁴ = 13116277 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13132261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6566330 + 6566331.

It is an arithmetic number, because the mean of its divisors is an integer number (6566331).

Almost surely, 2^13132661 is an apocalyptic number.

It is an amenable number.

13132661 is a deficient number, since it is larger than the sum of its proper divisors (1).

13132661 is an equidigital number, since it uses as much as digits as its factorization.

13132661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 13132661 is about 3623.9013507545. The cubic root of 13132661 is about 235.9305850144.

Adding to 13132661 its reverse (16623131), we get a palindrome (29755792).

The spelling of 13132661 in words is "thirteen million, one hundred thirty-two thousand, six hundred sixty-one".