133923133 has 2 divisors, whose sum is σ = 133923134. Its totient is φ = 133923132.

The previous prime is 133923107. The next prime is 133923149. The reversal of 133923133 is 331329331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73736569 + 60186564 = 8587^2 + 7758^2 .

It is an emirp because it is prime and its reverse (331329331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133923133 is a prime.

It is a zygodrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133920133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66961566 + 66961567.

It is an arithmetic number, because the mean of its divisors is an integer number (66961567).

Almost surely, 2^133923133 is an apocalyptic number.

It is an amenable number.

133923133 is a deficient number, since it is larger than the sum of its proper divisors (1).

133923133 is an equidigital number, since it uses as much as digits as its factorization.

133923133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374, while the sum is 28.

The square root of 133923133 is about 11572.5162778023. The cubic root of 133923133 is about 511.6251286836.

The spelling of 133923133 in words is "one hundred thirty-three million, nine hundred twenty-three thousand, one hundred thirty-three".