171401871 has 16 divisors (see below), whose sum is σ = 248521824. Its totient is φ = 104638464.

The previous prime is 171401863. The next prime is 171401897. The reversal of 171401871 is 178104171.

It is not a de Polignac number, because 171401871 - 2³ = 171401863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171401801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43530 + ... + 47303.

It is an arithmetic number, because the mean of its divisors is an integer number (15532614).

Almost surely, 2^171401871 is an apocalyptic number.

171401871 is a deficient number, since it is larger than the sum of its proper divisors (77119953).

171401871 is a wasteful number, since it uses less digits than its factorization.

171401871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90890.

The product of its (nonzero) digits is 1568, while the sum is 30.

The square root of 171401871 is about 13092.0537349951. The cubic root of 171401871 is about 555.4843819325.

The spelling of 171401871 in words is "one hundred seventy-one million, four hundred one thousand, eight hundred seventy-one".