102859 has 2 divisors, whose sum is σ = 102860. Its totient is φ = 102858.

The previous prime is 102841. The next prime is 102871. The reversal of 102859 is 958201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102859 - 2¹¹ = 100811 is a prime.

It is not a weakly prime, because it can be changed into another prime (102829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51429 + 51430.

It is an arithmetic number, because the mean of its divisors is an integer number (51430).

2¹⁰²⁸⁵⁹ is an apocalyptic number.

102859 is a deficient number, since it is larger than the sum of its proper divisors (1).

102859 is an equidigital number, since it uses as much as digits as its factorization.

102859 is an odious number, because the sum of its binary digits is odd.

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

The square root of 102859 is about 320.7163856120. The cubic root of 102859 is about 46.8540819259.

It can be divided in two parts, 102 and 859, that added together give a square (961 = 31²).

The spelling of 102859 in words is "one hundred two thousand, eight hundred fifty-nine".