102173 has 4 divisors (see below), whose sum is σ = 103488. Its totient is φ = 100860.

The previous prime is 102161. The next prime is 102181. The reversal of 102173 is 371201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 371201 = 281 ⋅1321.

It is a cyclic number.

It is not a de Polignac number, because 102173 - 2⁸ = 101917 is a prime.

It is a deceptive number, since it divides R₁₀₂₁₇₂.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102103) 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, 533 + ... + 698.

It is an arithmetic number, because the mean of its divisors is an integer number (25872).

2¹⁰²¹⁷³ is an apocalyptic number.

It is an amenable number.

102173 is a deficient number, since it is larger than the sum of its proper divisors (1315).

102173 is an equidigital number, since it uses as much as digits as its factorization.

102173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 102173 is about 319.6451157143. The cubic root of 102173 is about 46.7496878167.

Adding to 102173 its reverse (371201), we get a palindrome (473374).

The spelling of 102173 in words is "one hundred two thousand, one hundred seventy-three", and thus it is an iban number.