171248711 has 2 divisors, whose sum is σ = 171248712. Its totient is φ = 171248710.

The previous prime is 171248689. The next prime is 171248713. The reversal of 171248711 is 117842171.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171248711 is a prime.

It is a super-2 number, since 2×171248711² = 58652242038323042, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 171248713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171248713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85624355 + 85624356.

It is an arithmetic number, because the mean of its divisors is an integer number (85624356).

Almost surely, 2^171248711 is an apocalyptic number.

171248711 is a deficient number, since it is larger than the sum of its proper divisors (1).

171248711 is an equidigital number, since it uses as much as digits as its factorization.

171248711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3136, while the sum is 32.

The square root of 171248711 is about 13086.2030780513. The cubic root of 171248711 is about 555.3188774349.

The spelling of 171248711 in words is "one hundred seventy-one million, two hundred forty-eight thousand, seven hundred eleven".