11905171 has 2 divisors, whose sum is σ = 11905172. Its totient is φ = 11905170.

The previous prime is 11905139. The next prime is 11905189. The reversal of 11905171 is 17150911.

11905171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11905171 - 2⁵ = 11905139 is a prime.

It is not a weakly prime, because it can be changed into another prime (11905121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5952585 + 5952586.

It is an arithmetic number, because the mean of its divisors is an integer number (5952586).

Almost surely, 2^11905171 is an apocalyptic number.

11905171 is a deficient number, since it is larger than the sum of its proper divisors (1).

11905171 is an equidigital number, since it uses as much as digits as its factorization.

11905171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 25.

The square root of 11905171 is about 3450.3870797347. The cubic root of 11905171 is about 228.3381856760.

The spelling of 11905171 in words is "eleven million, nine hundred five thousand, one hundred seventy-one".