133045613 has 2 divisors, whose sum is σ = 133045614. Its totient is φ = 133045612.

The previous prime is 133045609. The next prime is 133045631. The reversal of 133045613 is 316540331.

Together with next prime (133045631) 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., 122168809 + 10876804 = 11053^2 + 3298^2 .

It is an emirp because it is prime and its reverse (316540331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133045613 - 2² = 133045609 is a prime.

It is a super-2 number, since 2×133045613² = 35402270277091538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133045643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66522806 + 66522807.

It is an arithmetic number, because the mean of its divisors is an integer number (66522807).

Almost surely, 2^133045613 is an apocalyptic number.

It is an amenable number.

133045613 is a deficient number, since it is larger than the sum of its proper divisors (1).

133045613 is an equidigital number, since it uses as much as digits as its factorization.

133045613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 133045613 is about 11534.5399994972. The cubic root of 133045613 is about 510.5052189470.

Adding to 133045613 its reverse (316540331), we get a palindrome (449585944).

The spelling of 133045613 in words is "one hundred thirty-three million, forty-five thousand, six hundred thirteen".