73144817 has 2 divisors, whose sum is σ = 73144818. Its totient is φ = 73144816.

The previous prime is 73144811. The next prime is 73144843. The reversal of 73144817 is 71844137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56490256 + 16654561 = 7516^2 + 4081^2 .

It is a cyclic number.

It is not a de Polignac number, because 73144817 - 2¹⁰ = 73143793 is a prime.

It is not a weakly prime, because it can be changed into another prime (73144811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36572408 + 36572409.

It is an arithmetic number, because the mean of its divisors is an integer number (36572409).

Almost surely, 2^73144817 is an apocalyptic number.

It is an amenable number.

73144817 is a deficient number, since it is larger than the sum of its proper divisors (1).

73144817 is an equidigital number, since it uses as much as digits as its factorization.

73144817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 35.

The square root of 73144817 is about 8552.4743203356. The cubic root of 73144817 is about 418.2101020954.

The spelling of 73144817 in words is "seventy-three million, one hundred forty-four thousand, eight hundred seventeen".