73533133 has 2 divisors, whose sum is σ = 73533134. Its totient is φ = 73533132.

The previous prime is 73533113. The next prime is 73533157. The reversal of 73533133 is 33133537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43797924 + 29735209 = 6618^2 + 5453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73533133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73533113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36766566 + 36766567.

It is an arithmetic number, because the mean of its divisors is an integer number (36766567).

Almost surely, 2^73533133 is an apocalyptic number.

It is an amenable number.

73533133 is a deficient number, since it is larger than the sum of its proper divisors (1).

73533133 is an equidigital number, since it uses as much as digits as its factorization.

73533133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8505, while the sum is 28.

The square root of 73533133 is about 8575.1462378201. The cubic root of 73533133 is about 418.9488700300.

The spelling of 73533133 in words is "seventy-three million, five hundred thirty-three thousand, one hundred thirty-three".