171512053 has 6 divisors (see below), whose sum is σ = 174373602. Its totient is φ = 168696720.

The previous prime is 171512041. The next prime is 171512059. The reversal of 171512053 is 350215171.

It can be written as a sum of positive squares in 3 ways, for example, as 7851204 + 163660849 = 2802^2 + 12793^2 .

It is not a de Polignac number, because 171512053 - 2⁵ = 171512021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171512059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19326 + ... + 26767.

It is an arithmetic number, because the mean of its divisors is an integer number (29062267).

Almost surely, 2^171512053 is an apocalyptic number.

It is an amenable number.

171512053 is a deficient number, since it is larger than the sum of its proper divisors (2861549).

171512053 is an frugal number, since it uses more digits than its factorization.

171512053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46215 (or 46154 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 171512053 is about 13096.2610313020. The cubic root of 171512053 is about 555.6033834927.

The spelling of 171512053 in words is "one hundred seventy-one million, five hundred twelve thousand, fifty-three".