75271013 has 2 divisors, whose sum is σ = 75271014. Its totient is φ = 75271012.

The previous prime is 75271003. The next prime is 75271051. The reversal of 75271013 is 31017257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65642404 + 9628609 = 8102^2 + 3103^2 .

It is a cyclic number.

It is not a de Polignac number, because 75271013 - 2⁴ = 75270997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75271003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37635506 + 37635507.

It is an arithmetic number, because the mean of its divisors is an integer number (37635507).

Almost surely, 2^75271013 is an apocalyptic number.

It is an amenable number.

75271013 is a deficient number, since it is larger than the sum of its proper divisors (1).

75271013 is an equidigital number, since it uses as much as digits as its factorization.

75271013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 75271013 is about 8675.8868710928. The cubic root of 75271013 is about 422.2236802992.

The spelling of 75271013 in words is "seventy-five million, two hundred seventy-one thousand, thirteen".