100546 has 4 divisors (see below), whose sum is σ = 150822. Its totient is φ = 50272.

The previous prime is 100537. The next prime is 100547. The reversal of 100546 is 645001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 645001 = 7 ⋅92143.

It can be written as a sum of positive squares in only one way, i.e., 81225 + 19321 = 285^2 + 139^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25135 + ... + 25138.

2¹⁰⁰⁵⁴⁶ is an apocalyptic number.

100546 is a deficient number, since it is larger than the sum of its proper divisors (50276).

100546 is an equidigital number, since it uses as much as digits as its factorization.

100546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50275.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 100546 is about 317.0898926172. The cubic root of 100546 is about 46.5002119696.

Adding to 100546 its reverse (645001), we get a palindrome (745547).

It can be divided in two parts, 100 and 546, that added together give a palindrome (646).

The spelling of 100546 in words is "one hundred thousand, five hundred forty-six".