171402871 has 2 divisors, whose sum is σ = 171402872. Its totient is φ = 171402870.

The previous prime is 171402853. The next prime is 171402911. The reversal of 171402871 is 178204171.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 171402871 - 2¹³ = 171394679 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171402811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85701435 + 85701436.

It is an arithmetic number, because the mean of its divisors is an integer number (85701436).

Almost surely, 2^171402871 is an apocalyptic number.

171402871 is a deficient number, since it is larger than the sum of its proper divisors (1).

171402871 is an equidigital number, since it uses as much as digits as its factorization.

171402871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 171402871 is about 13092.0919260445. The cubic root of 171402871 is about 555.4854622072.

The spelling of 171402871 in words is "one hundred seventy-one million, four hundred two thousand, eight hundred seventy-one".