73026281 has 2 divisors, whose sum is σ = 73026282. Its totient is φ = 73026280.

The previous prime is 73026259. The next prime is 73026287. The reversal of 73026281 is 18262037.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62267881 + 10758400 = 7891^2 + 3280^2 .

It is an emirp because it is prime and its reverse (18262037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73026281 - 2¹⁴ = 73009897 is a prime.

It is a super-2 number, since 2×73026281² = 10665675433381922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73026287) 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, 36513140 + 36513141.

It is an arithmetic number, because the mean of its divisors is an integer number (36513141).

Almost surely, 2^73026281 is an apocalyptic number.

It is an amenable number.

73026281 is a deficient number, since it is larger than the sum of its proper divisors (1).

73026281 is an equidigital number, since it uses as much as digits as its factorization.

73026281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 73026281 is about 8545.5415861138. The cubic root of 73026281 is about 417.9840675994.

The spelling of 73026281 in words is "seventy-three million, twenty-six thousand, two hundred eighty-one".