102659 has 4 divisors (see below), whose sum is σ = 103320. Its totient is φ = 102000.

The previous prime is 102653. The next prime is 102667. The reversal of 102659 is 956201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 956201 = 773 ⋅1237.

It is a cyclic number.

It is not a de Polignac number, because 102659 - 2⁴ = 102643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102653) 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, 47 + ... + 455.

It is an arithmetic number, because the mean of its divisors is an integer number (25830).

2¹⁰²⁶⁵⁹ is an apocalyptic number.

102659 is a deficient number, since it is larger than the sum of its proper divisors (661).

102659 is an equidigital number, since it uses as much as digits as its factorization.

102659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 102659 is about 320.4044319294. The cubic root of 102659 is about 46.8236943840.

The spelling of 102659 in words is "one hundred two thousand, six hundred fifty-nine".