171088231 has 4 divisors (see below), whose sum is σ = 171115264. Its totient is φ = 171061200.

The previous prime is 171088213. The next prime is 171088249. The reversal of 171088231 is 132880171.

It is a happy number.

171088231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 132880171 = 4729 ⋅28099.

It is an interprime number because it is at equal distance from previous prime (171088213) and next prime (171088249).

It is a cyclic number.

It is not a de Polignac number, because 171088231 - 2⁵ = 171088199 is a prime.

It is a super-2 number, since 2×171088231² = 58542365573418722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 171088193 and 171088202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171088831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651 + ... + 18571.

It is an arithmetic number, because the mean of its divisors is an integer number (42778816).

Almost surely, 2^171088231 is an apocalyptic number.

171088231 is a deficient number, since it is larger than the sum of its proper divisors (27033).

171088231 is a wasteful number, since it uses less digits than its factorization.

171088231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27032.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 171088231 is about 13080.0699921675. The cubic root of 171088231 is about 555.1453570519.

The spelling of 171088231 in words is "one hundred seventy-one million, eighty-eight thousand, two hundred thirty-one".