102851 has 6 divisors (see below), whose sum is σ = 119700. Its totient is φ = 88116.

The previous prime is 102841. The next prime is 102859. The reversal of 102851 is 158201.

It is not a de Polignac number, because 102851 - 2¹⁴ = 86467 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 102851.

It is not an unprimeable number, because it can be changed into a prime (102859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1001 + ... + 1098.

It is an arithmetic number, because the mean of its divisors is an integer number (19950).

2¹⁰²⁸⁵¹ is an apocalyptic number.

102851 is a deficient number, since it is larger than the sum of its proper divisors (16849).

102851 is an equidigital number, since it uses as much as digits as its factorization.

102851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113 (or 2106 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 102851 is about 320.7039132907. The cubic root of 102851 is about 46.8528671809.

The spelling of 102851 in words is "one hundred two thousand, eight hundred fifty-one".