102985 has 8 divisors (see below), whose sum is σ = 126720. Its totient is φ = 80304.

The previous prime is 102983. The next prime is 103001. The reversal of 102985 is 589201.

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 102985 - 2¹ = 102983 is a prime.

It is a nialpdrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102983) 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, 25 + ... + 454.

It is an arithmetic number, because the mean of its divisors is an integer number (15840).

2¹⁰²⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

102985 is a deficient number, since it is larger than the sum of its proper divisors (23735).

102985 is an equidigital number, since it uses as much as digits as its factorization.

102985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 102985 is about 320.9127607310. The cubic root of 102985 is about 46.8732058573.

The spelling of 102985 in words is "one hundred two thousand, nine hundred eighty-five".