73030189 has 2 divisors, whose sum is σ = 73030190. Its totient is φ = 73030188.

The previous prime is 73030169. The next prime is 73030229. The reversal of 73030189 is 98103037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62252100 + 10778089 = 7890^2 + 3283^2 .

It is a cyclic number.

It is not a de Polignac number, because 73030189 - 2⁵ = 73030157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73030189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73030159) 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 as a sum of consecutive naturals, namely, 36515094 + 36515095.

It is an arithmetic number, because the mean of its divisors is an integer number (36515095).

Almost surely, 2^73030189 is an apocalyptic number.

It is an amenable number.

73030189 is a deficient number, since it is larger than the sum of its proper divisors (1).

73030189 is an equidigital number, since it uses as much as digits as its factorization.

73030189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 73030189 is about 8545.7702403002. The cubic root of 73030189 is about 417.9915236028.

The spelling of 73030189 in words is "seventy-three million, thirty thousand, one hundred eighty-nine".