73072123 has 2 divisors, whose sum is σ = 73072124. Its totient is φ = 73072122.

The previous prime is 73072079. The next prime is 73072159. The reversal of 73072123 is 32127037.

It is a strong prime.

It is an emirp because it is prime and its reverse (32127037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73072123 - 2⁹ = 73071611 is a prime.

It is not a weakly prime, because it can be changed into another prime (73072723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36536061 + 36536062.

It is an arithmetic number, because the mean of its divisors is an integer number (36536062).

Almost surely, 2^73072123 is an apocalyptic number.

73072123 is a deficient number, since it is larger than the sum of its proper divisors (1).

73072123 is an equidigital number, since it uses as much as digits as its factorization.

73072123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 73072123 is about 8548.2233826685. The cubic root of 73072123 is about 418.0715119974.

The spelling of 73072123 in words is "seventy-three million, seventy-two thousand, one hundred twenty-three".