75075073 has 2 divisors, whose sum is σ = 75075074. Its totient is φ = 75075072.

The previous prime is 75075071. The next prime is 75075127. The reversal of 75075073 is 37057057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71791729 + 3283344 = 8473^2 + 1812^2 .

It is a cyclic number.

It is not a de Polignac number, because 75075073 - 2¹ = 75075071 is a prime.

Together with 75075071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (75075071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37537536 + 37537537.

It is an arithmetic number, because the mean of its divisors is an integer number (37537537).

Almost surely, 2^75075073 is an apocalyptic number.

It is an amenable number.

75075073 is a deficient number, since it is larger than the sum of its proper divisors (1).

75075073 is an equidigital number, since it uses as much as digits as its factorization.

75075073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25725, while the sum is 34.

The square root of 75075073 is about 8664.5872954227. The cubic root of 75075073 is about 421.8569946627.

The spelling of 75075073 in words is "seventy-five million, seventy-five thousand, seventy-three".