73057189 has 2 divisors, whose sum is σ = 73057190. Its totient is φ = 73057188.

The previous prime is 73057157. The next prime is 73057207. The reversal of 73057189 is 98175037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70308225 + 2748964 = 8385^2 + 1658^2 .

It is a cyclic number.

It is not a de Polignac number, because 73057189 - 2⁵ = 73057157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73057289) 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, 36528594 + 36528595.

It is an arithmetic number, because the mean of its divisors is an integer number (36528595).

Almost surely, 2^73057189 is an apocalyptic number.

It is an amenable number.

73057189 is a deficient number, since it is larger than the sum of its proper divisors (1).

73057189 is an equidigital number, since it uses as much as digits as its factorization.

73057189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 73057189 is about 8547.3498231908. The cubic root of 73057189 is about 418.0430291548.

The spelling of 73057189 in words is "seventy-three million, fifty-seven thousand, one hundred eighty-nine".