101659 has 4 divisors (see below), whose sum is σ = 102304. Its totient is φ = 101016.

The previous prime is 101653. The next prime is 101663. The reversal of 101659 is 956101.

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: 956101 = 29 ⋅32969.

It is a cyclic number.

It is not a de Polignac number, because 101659 - 2⁵ = 101627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101653) 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, 94 + ... + 460.

It is an arithmetic number, because the mean of its divisors is an integer number (25576).

2¹⁰¹⁶⁵⁹ is an apocalyptic number.

101659 is a deficient number, since it is larger than the sum of its proper divisors (645).

101659 is an equidigital number, since it uses as much as digits as its factorization.

101659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 101659 is about 318.8400853092. The cubic root of 101659 is about 46.6711616985.

The spelling of 101659 in words is "one hundred one thousand, six hundred fifty-nine".