248917171 has 2 divisors, whose sum is σ = 248917172. Its totient is φ = 248917170.

The previous prime is 248917159. The next prime is 248917177. The reversal of 248917171 is 171719842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 248917171 - 2⁹ = 248916659 is a prime.

It is not a weakly prime, because it can be changed into another prime (248917177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124458585 + 124458586.

It is an arithmetic number, because the mean of its divisors is an integer number (124458586).

Almost surely, 2^248917171 is an apocalyptic number.

248917171 is a deficient number, since it is larger than the sum of its proper divisors (1).

248917171 is an equidigital number, since it uses as much as digits as its factorization.

248917171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 40.

The square root of 248917171 is about 15777.1090824650. The cubic root of 248917171 is about 629.0496892729.

The spelling of 248917171 in words is "two hundred forty-eight million, nine hundred seventeen thousand, one hundred seventy-one".