73163173 has 2 divisors, whose sum is σ = 73163174. Its totient is φ = 73163172.

The previous prime is 73163159. The next prime is 73163183. The reversal of 73163173 is 37136137.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57426084 + 15737089 = 7578^2 + 3967^2 .

It is an emirp because it is prime and its reverse (37136137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73163173 - 2¹³ = 73154981 is a prime.

It is equal to p_4293058 and since 73163173 and 4293058 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73163183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36581586 + 36581587.

It is an arithmetic number, because the mean of its divisors is an integer number (36581587).

Almost surely, 2^73163173 is an apocalyptic number.

It is an amenable number.

73163173 is a deficient number, since it is larger than the sum of its proper divisors (1).

73163173 is an equidigital number, since it uses as much as digits as its factorization.

73163173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938, while the sum is 31.

The square root of 73163173 is about 8553.5473927488. The cubic root of 73163173 is about 418.2450830317.

The spelling of 73163173 in words is "seventy-three million, one hundred sixty-three thousand, one hundred seventy-three".