100258 has 4 divisors (see below), whose sum is σ = 150390. Its totient is φ = 50128.

The previous prime is 100237. The next prime is 100267. The reversal of 100258 is 852001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 852001 = 163 ⋅5227.

It can be written as a sum of positive squares in only one way, i.e., 59049 + 41209 = 243^2 + 203^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25063 + ... + 25066.

2¹⁰⁰²⁵⁸ is an apocalyptic number.

100258 is a deficient number, since it is larger than the sum of its proper divisors (50132).

100258 is an equidigital number, since it uses as much as digits as its factorization.

100258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50131.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 100258 is about 316.6354370566. The cubic root of 100258 is about 46.4557717200.

Adding to 100258 its reverse (852001), we get a palindrome (952259).

It can be divided in two parts, 10025 and 8, that multiplied together give a triangular number (80200 = T₄₀₀).

The spelling of 100258 in words is "one hundred thousand, two hundred fifty-eight".