73122943 has 2 divisors, whose sum is σ = 73122944. Its totient is φ = 73122942.

The previous prime is 73122937. The next prime is 73122947. The reversal of 73122943 is 34922137.

It is a strong prime.

It is an emirp because it is prime and its reverse (34922137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73122943 - 2²¹ = 71025791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73122947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36561471 + 36561472.

It is an arithmetic number, because the mean of its divisors is an integer number (36561472).

Almost surely, 2^73122943 is an apocalyptic number.

73122943 is a deficient number, since it is larger than the sum of its proper divisors (1).

73122943 is an equidigital number, since it uses as much as digits as its factorization.

73122943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 31.

The square root of 73122943 is about 8551.1954135080. The cubic root of 73122943 is about 418.1684092811.

The spelling of 73122943 in words is "seventy-three million, one hundred twenty-two thousand, nine hundred forty-three".