73042243 has 2 divisors, whose sum is σ = 73042244. Its totient is φ = 73042242.

The previous prime is 73042187. The next prime is 73042247. The reversal of 73042243 is 34224037.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73042243 - 2¹³ = 73034051 is a prime.

It is not a weakly prime, because it can be changed into another prime (73042247) 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, 36521121 + 36521122.

It is an arithmetic number, because the mean of its divisors is an integer number (36521122).

Almost surely, 2^73042243 is an apocalyptic number.

73042243 is a deficient number, since it is larger than the sum of its proper divisors (1).

73042243 is an equidigital number, since it uses as much as digits as its factorization.

73042243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 73042243 is about 8546.4754723804. The cubic root of 73042243 is about 418.0145195387.

The spelling of 73042243 in words is "seventy-three million, forty-two thousand, two hundred forty-three".