171020852 has 12 divisors (see below), whose sum is σ = 299453700. Its totient is φ = 85462656.

The previous prime is 171020809. The next prime is 171020869. The reversal of 171020852 is 258020171.

It can be written as a sum of positive squares in 2 ways, for example, as 81793936 + 89226916 = 9044^2 + 9446^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3173 + ... + 18764.

It is an arithmetic number, because the mean of its divisors is an integer number (24954475).

Almost surely, 2^171020852 is an apocalyptic number.

It is an amenable number.

171020852 is a deficient number, since it is larger than the sum of its proper divisors (128432848).

171020852 is a wasteful number, since it uses less digits than its factorization.

171020852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23890 (or 23888 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 171020852 is about 13077.4941024647. The cubic root of 171020852 is about 555.0724705842.

The spelling of 171020852 in words is "one hundred seventy-one million, twenty thousand, eight hundred fifty-two".