75075071 has 2 divisors, whose sum is σ = 75075072. Its totient is φ = 75075070.

The previous prime is 75075067. The next prime is 75075073. The reversal of 75075071 is 17057057.

It is a strong prime.

It is an emirp because it is prime and its reverse (17057057) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75075071 - 2² = 75075067 is a prime.

Together with 75075073, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_4398404 and since 75075071 and 4398404 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75075073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37537535 + 37537536.

It is an arithmetic number, because the mean of its divisors is an integer number (37537536).

Almost surely, 2^75075071 is an apocalyptic number.

75075071 is a deficient number, since it is larger than the sum of its proper divisors (1).

75075071 is an equidigital number, since it uses as much as digits as its factorization.

75075071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8575, while the sum is 32.

The square root of 75075071 is about 8664.5871800104. The cubic root of 75075071 is about 421.8569909166.

The spelling of 75075071 in words is "seventy-five million, seventy-five thousand, seventy-one".