73045331 has 8 divisors (see below), whose sum is σ = 75724800. Its totient is φ = 70386120.

The previous prime is 73045327. The next prime is 73045339. The reversal of 73045331 is 13354037.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73045331 - 2² = 73045327 is a prime.

It is a super-2 number, since 2×73045331² = 10671240761799122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73045331.

It is not an unprimeable number, because it can be changed into a prime (73045339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2480 + ... + 12338.

It is an arithmetic number, because the mean of its divisors is an integer number (9465600).

Almost surely, 2^73045331 is an apocalyptic number.

73045331 is a deficient number, since it is larger than the sum of its proper divisors (2679469).

73045331 is a wasteful number, since it uses less digits than its factorization.

73045331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10129.

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

The square root of 73045331 is about 8546.6561297387. The cubic root of 73045331 is about 418.0204102424.

Adding to 73045331 its reverse (13354037), we get a palindrome (86399368).

The spelling of 73045331 in words is "seventy-three million, forty-five thousand, three hundred thirty-one".