133120513 has 2 divisors, whose sum is σ = 133120514. Its totient is φ = 133120512.

The previous prime is 133120499. The next prime is 133120531. The reversal of 133120513 is 315021331.

Together with next prime (133120531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123921424 + 9199089 = 11132^2 + 3033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133120513 is a prime.

It is not a weakly prime, because it can be changed into another prime (133130513) 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, 66560256 + 66560257.

It is an arithmetic number, because the mean of its divisors is an integer number (66560257).

Almost surely, 2^133120513 is an apocalyptic number.

It is an amenable number.

133120513 is a deficient number, since it is larger than the sum of its proper divisors (1).

133120513 is an equidigital number, since it uses as much as digits as its factorization.

133120513 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 19.

The square root of 133120513 is about 11537.7863128071. The cubic root of 133120513 is about 510.6009998023.

Adding to 133120513 its reverse (315021331), we get a palindrome (448141844).

The spelling of 133120513 in words is "one hundred thirty-three million, one hundred twenty thousand, five hundred thirteen".