73071533 has 4 divisors (see below), whose sum is σ = 73185120. Its totient is φ = 72957948.

The previous prime is 73071517. The next prime is 73071541. The reversal of 73071533 is 33517037.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33517037 = 181 ⋅185177.

It is a cyclic number.

It is not a de Polignac number, because 73071533 - 2⁴ = 73071517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73071496 and 73071505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73071133) 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 in 3 ways as a sum of consecutive naturals, for example, 55823 + ... + 57116.

It is an arithmetic number, because the mean of its divisors is an integer number (18296280).

Almost surely, 2^73071533 is an apocalyptic number.

It is an amenable number.

73071533 is a deficient number, since it is larger than the sum of its proper divisors (113587).

73071533 is a wasteful number, since it uses less digits than its factorization.

73071533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113586.

The product of its (nonzero) digits is 6615, while the sum is 29.

The square root of 73071533 is about 8548.1888725039. The cubic root of 73071533 is about 418.0703867947.

It can be divided in two parts, 730 and 71533, that multiplied together give a triangular number (52219090 = T₁₀₂₁₉).

The spelling of 73071533 in words is "seventy-three million, seventy-one thousand, five hundred thirty-three".