134542013 has 2 divisors, whose sum is σ = 134542014. Its totient is φ = 134542012.

The previous prime is 134541997. The next prime is 134542039. The reversal of 134542013 is 310245431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125037124 + 9504889 = 11182^2 + 3083^2 .

It is an emirp because it is prime and its reverse (310245431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134542013 - 2⁴ = 134541997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134542013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134542043) 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, 67271006 + 67271007.

It is an arithmetic number, because the mean of its divisors is an integer number (67271007).

Almost surely, 2^134542013 is an apocalyptic number.

It is an amenable number.

134542013 is a deficient number, since it is larger than the sum of its proper divisors (1).

134542013 is an equidigital number, since it uses as much as digits as its factorization.

134542013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 134542013 is about 11599.2246723650. The cubic root of 134542013 is about 512.4120180517.

Adding to 134542013 its reverse (310245431), we get a palindrome (444787444).

The spelling of 134542013 in words is "one hundred thirty-four million, five hundred forty-two thousand, thirteen".