73071243 has 12 divisors (see below), whose sum is σ = 120625648. Its totient is φ = 41754960.

The previous prime is 73071227. The next prime is 73071289. The reversal of 73071243 is 34217037.

It is not a de Polignac number, because 73071243 - 2⁴ = 73071227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73071203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 579868 + ... + 579993.

Almost surely, 2^73071243 is an apocalyptic number.

73071243 is a deficient number, since it is larger than the sum of its proper divisors (47554405).

73071243 is a wasteful number, since it uses less digits than its factorization.

73071243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159874 (or 1159871 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 73071243 is about 8548.1719098296. The cubic root of 73071243 is about 418.0698337267.

The spelling of 73071243 in words is "seventy-three million, seventy-one thousand, two hundred forty-three".