100858 has 8 divisors (see below), whose sum is σ = 152640. Its totient is φ = 49980.

The previous prime is 100853. The next prime is 100907. The reversal of 100858 is 858001.

100858 is nontrivially palindromic in base 14.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100853) 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, 303 + ... + 541.

It is an arithmetic number, because the mean of its divisors is an integer number (19080).

2¹⁰⁰⁸⁵⁸ is an apocalyptic number.

100858 is a deficient number, since it is larger than the sum of its proper divisors (51782).

100858 is a wasteful number, since it uses less digits than its factorization.

100858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 100858 is about 317.5814856065. The cubic root of 100858 is about 46.5482599128.

Adding to 100858 its reverse (858001), we get a palindrome (958859).

The spelling of 100858 in words is "one hundred thousand, eight hundred fifty-eight".