102823173 has 6 divisors (see below), whose sum is σ = 148522374. Its totient is φ = 68548776.

The previous prime is 102823163. The next prime is 102823199. The reversal of 102823173 is 371328201.

It can be written as a sum of positive squares in only one way, i.e., 79174404 + 23648769 = 8898^2 + 4863^2 .

It is not a de Polignac number, because 102823173 - 2⁵ = 102823141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102823103) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 5712390 + ... + 5712407.

It is an arithmetic number, because the mean of its divisors is an integer number (24753729).

Almost surely, 2^102823173 is an apocalyptic number.

It is an amenable number.

102823173 is a deficient number, since it is larger than the sum of its proper divisors (45699201).

102823173 is a wasteful number, since it uses less digits than its factorization.

102823173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11424803 (or 11424800 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 102823173 is about 10140.1761819014. The cubic root of 102823173 is about 468.4864135151.

The spelling of 102823173 in words is "one hundred two million, eight hundred twenty-three thousand, one hundred seventy-three".