171131053 has 4 divisors (see below), whose sum is σ = 173475388. Its totient is φ = 168786720.

The previous prime is 171131041. The next prime is 171131083. The reversal of 171131053 is 350131171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350131171 = 13 ⋅26933167.

It can be written as a sum of positive squares in 2 ways, for example, as 119836809 + 51294244 = 10947^2 + 7162^2 .

It is a cyclic number.

It is not a de Polignac number, because 171131053 - 2⁵ = 171131021 is a prime.

It is a super-3 number, since 3×171131053³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171131003) 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, 1172058 + ... + 1172203.

It is an arithmetic number, because the mean of its divisors is an integer number (43368847).

Almost surely, 2^171131053 is an apocalyptic number.

It is an amenable number.

171131053 is a deficient number, since it is larger than the sum of its proper divisors (2344335).

171131053 is an equidigital number, since it uses as much as digits as its factorization.

171131053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344334.

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 171131053 is about 13081.7068075997. The cubic root of 171131053 is about 555.1916693187.

The spelling of 171131053 in words is "one hundred seventy-one million, one hundred thirty-one thousand, fifty-three".