133142533 has 2 divisors, whose sum is σ = 133142534. Its totient is φ = 133142532.

The previous prime is 133142531. The next prime is 133142563. The reversal of 133142533 is 335241331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125037124 + 8105409 = 11182^2 + 2847^2 .

It is a cyclic number.

It is not a de Polignac number, because 133142533 - 2¹ = 133142531 is a prime.

Together with 133142531, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 133142498 and 133142507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133142531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66571266 + 66571267.

It is an arithmetic number, because the mean of its divisors is an integer number (66571267).

Almost surely, 2^133142533 is an apocalyptic number.

It is an amenable number.

133142533 is a deficient number, since it is larger than the sum of its proper divisors (1).

133142533 is an equidigital number, since it uses as much as digits as its factorization.

133142533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 25.

The square root of 133142533 is about 11538.7405291912. The cubic root of 133142533 is about 510.6291517725.

Adding to 133142533 its reverse (335241331), we get a palindrome (468383864).

The spelling of 133142533 in words is "one hundred thirty-three million, one hundred forty-two thousand, five hundred thirty-three".