100259 has 4 divisors (see below), whose sum is σ = 101304. Its totient is φ = 99216.

The previous prime is 100237. The next prime is 100267. The reversal of 100259 is 952001.

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.

It is a cyclic number.

It is not a de Polignac number, because 100259 - 2⁸ = 100003 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 100259.

It is not an unprimeable number, because it can be changed into a prime (100279) 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, 362 + ... + 575.

It is an arithmetic number, because the mean of its divisors is an integer number (25326).

2¹⁰⁰²⁵⁹ is an apocalyptic number.

100259 is a deficient number, since it is larger than the sum of its proper divisors (1045).

100259 is an equidigital number, since it uses as much as digits as its factorization.

100259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 100259 is about 316.6370161557. The cubic root of 100259 is about 46.4559261736.

The spelling of 100259 in words is "one hundred thousand, two hundred fifty-nine".