171000131 has 2 divisors, whose sum is σ = 171000132. Its totient is φ = 171000130.

The previous prime is 171000119. The next prime is 171000139. The reversal of 171000131 is 131000171.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 171000131 - 2²² = 166805827 is a prime.

It is a super-2 number, since 2×171000131² = 58482089604034322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (171000139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85500065 + 85500066.

It is an arithmetic number, because the mean of its divisors is an integer number (85500066).

Almost surely, 2^171000131 is an apocalyptic number.

171000131 is a deficient number, since it is larger than the sum of its proper divisors (1).

171000131 is an equidigital number, since it uses as much as digits as its factorization.

171000131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21, while the sum is 14.

The square root of 171000131 is about 13076.7018395313. The cubic root of 171000131 is about 555.0500520290.

The spelling of 171000131 in words is "one hundred seventy-one million, one hundred thirty-one", and thus it is an aban number.