73245173 has 2 divisors, whose sum is σ = 73245174. Its totient is φ = 73245172.

The previous prime is 73245169. The next prime is 73245217. The reversal of 73245173 is 37154237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47914084 + 25331089 = 6922^2 + 5033^2 .

It is a cyclic number.

It is not a de Polignac number, because 73245173 - 2² = 73245169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73245103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36622586 + 36622587.

It is an arithmetic number, because the mean of its divisors is an integer number (36622587).

Almost surely, 2^73245173 is an apocalyptic number.

It is an amenable number.

73245173 is a deficient number, since it is larger than the sum of its proper divisors (1).

73245173 is an equidigital number, since it uses as much as digits as its factorization.

73245173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 32.

The square root of 73245173 is about 8558.3393833150. The cubic root of 73245173 is about 418.4012786082.

The spelling of 73245173 in words is "seventy-three million, two hundred forty-five thousand, one hundred seventy-three".