80203073 has 2 divisors, whose sum is σ = 80203074. Its totient is φ = 80203072.

The previous prime is 80203069. The next prime is 80203099. The reversal of 80203073 is 37030208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53246209 + 26956864 = 7297^2 + 5192^2 .

It is a cyclic number.

It is not a de Polignac number, because 80203073 - 2² = 80203069 is a prime.

It is not a weakly prime, because it can be changed into another prime (80203003) 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, 40101536 + 40101537.

It is an arithmetic number, because the mean of its divisors is an integer number (40101537).

Almost surely, 2^80203073 is an apocalyptic number.

It is an amenable number.

80203073 is a deficient number, since it is larger than the sum of its proper divisors (1).

80203073 is an equidigital number, since it uses as much as digits as its factorization.

80203073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 80203073 is about 8955.6168408435. The cubic root of 80203073 is about 431.2512195443.

The spelling of 80203073 in words is "eighty million, two hundred three thousand, seventy-three".