102485 has 8 divisors (see below), whose sum is σ = 124800. Its totient is φ = 80784.

The previous prime is 102481. The next prime is 102497. The reversal of 102485 is 584201.

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

It is a cyclic number.

It is not a de Polignac number, because 102485 - 2² = 102481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416 + ... + 614.

It is an arithmetic number, because the mean of its divisors is an integer number (15600).

2¹⁰²⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

102485 is a deficient number, since it is larger than the sum of its proper divisors (22315).

102485 is a wasteful number, since it uses less digits than its factorization.

102485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 102485 is about 320.1327849502. The cubic root of 102485 is about 46.7972251015.

Adding to 102485 its reverse (584201), we get a palindrome (686686).

The spelling of 102485 in words is "one hundred two thousand, four hundred eighty-five".