100273 has 4 divisors (see below), whose sum is σ = 100980. Its totient is φ = 99568.

The previous prime is 100271. The next prime is 100279. The reversal of 100273 is 372001.

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 can be written as a sum of positive squares in 2 ways, for example, as 91809 + 8464 = 303^2 + 92^2 .

It is a cyclic number.

It is not a de Polignac number, because 100273 - 2¹ = 100271 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100271) 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, 58 + ... + 451.

It is an arithmetic number, because the mean of its divisors is an integer number (25245).

2¹⁰⁰²⁷³ is an apocalyptic number.

It is an amenable number.

100273 is a deficient number, since it is larger than the sum of its proper divisors (707).

100273 is an equidigital number, since it uses as much as digits as its factorization.

100273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 100273 is about 316.6591227172. The cubic root of 100273 is about 46.4580884157.

Adding to 100273 its reverse (372001), we get a palindrome (472274).

It can be divided in two parts, 100 and 273, that added together give a palindrome (373).

The spelling of 100273 in words is "one hundred thousand, two hundred seventy-three", and thus it is an iban number.