102102171 has 8 divisors (see below), whose sum is σ = 138168384. Its totient is φ = 67052040.

The previous prime is 102102163. The next prime is 102102199. The reversal of 102102171 is 171201201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102102171 - 2³ = 102102163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102102171.

It is not an unprimeable number, because it can be changed into a prime (102102071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253785 + ... + 254186.

It is an arithmetic number, because the mean of its divisors is an integer number (17271048).

Almost surely, 2^102102171 is an apocalyptic number.

102102171 is a deficient number, since it is larger than the sum of its proper divisors (36066213).

102102171 is an equidigital number, since it uses as much as digits as its factorization.

102102171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508041.

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 102102171 is about 10104.5618905522. The cubic root of 102102171 is about 467.3888261672.

Adding to 102102171 its reverse (171201201), we get a palindrome (273303372).

The spelling of 102102171 in words is "one hundred two million, one hundred two thousand, one hundred seventy-one".