133130513 has 2 divisors, whose sum is σ = 133130514. Its totient is φ = 133130512.

The previous prime is 133130479. The next prime is 133130531. The reversal of 133130513 is 315031331.

Together with next prime (133130531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131033809 + 2096704 = 11447^2 + 1448^2 .

It is a cyclic number.

It is not a de Polignac number, because 133130513 - 2¹⁰ = 133129489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (133130533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66565256 + 66565257.

It is an arithmetic number, because the mean of its divisors is an integer number (66565257).

Almost surely, 2^133130513 is an apocalyptic number.

It is an amenable number.

133130513 is a deficient number, since it is larger than the sum of its proper divisors (1).

133130513 is an equidigital number, since it uses as much as digits as its factorization.

133130513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 133130513 is about 11538.2196633623. The cubic root of 133130513 is about 510.6137849147.

Adding to 133130513 its reverse (315031331), we get a palindrome (448161844).

The spelling of 133130513 in words is "one hundred thirty-three million, one hundred thirty thousand, five hundred thirteen".