73034281 has 2 divisors, whose sum is σ = 73034282. Its totient is φ = 73034280.

The previous prime is 73034279. The next prime is 73034293. The reversal of 73034281 is 18243037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70829056 + 2205225 = 8416^2 + 1485^2 .

It is an emirp because it is prime and its reverse (18243037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73034281 - 2¹ = 73034279 is a prime.

It is a super-2 number, since 2×73034281² = 10668012402373922, which contains 22 as substring.

Together with 73034279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73034681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36517140 + 36517141.

It is an arithmetic number, because the mean of its divisors is an integer number (36517141).

Almost surely, 2^73034281 is an apocalyptic number.

It is an amenable number.

73034281 is a deficient number, since it is larger than the sum of its proper divisors (1).

73034281 is an equidigital number, since it uses as much as digits as its factorization.

73034281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 73034281 is about 8546.0096536337. The cubic root of 73034281 is about 417.9993303714. Note that the first 3 decimals are identical.

The spelling of 73034281 in words is "seventy-three million, thirty-four thousand, two hundred eighty-one".