73504133 has 2 divisors, whose sum is σ = 73504134. Its totient is φ = 73504132.

The previous prime is 73504117. The next prime is 73504139. The reversal of 73504133 is 33140537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72982849 + 521284 = 8543^2 + 722^2 .

It is an emirp because it is prime and its reverse (33140537) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73504133 - 2⁴ = 73504117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73504139) 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, 36752066 + 36752067.

It is an arithmetic number, because the mean of its divisors is an integer number (36752067).

Almost surely, 2^73504133 is an apocalyptic number.

It is an amenable number.

73504133 is a deficient number, since it is larger than the sum of its proper divisors (1).

73504133 is an equidigital number, since it uses as much as digits as its factorization.

73504133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 73504133 is about 8573.4551378076. The cubic root of 73504133 is about 418.8937877640.

It can be divided in two parts, 73504 and 133, that added together give a palindrome (73637).

The spelling of 73504133 in words is "seventy-three million, five hundred four thousand, one hundred thirty-three".