100485 has 48 divisors (see below), whose sum is σ = 224640. Its totient is φ = 40320.

The previous prime is 100483. The next prime is 100493. The reversal of 100485 is 584001.

It is not a de Polignac number, because 100485 - 2¹ = 100483 is a prime.

Together with 124155 it forms an amicable pair .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3451 + ... + 3479.

It is an arithmetic number, because the mean of its divisors is an integer number (4680).

2¹⁰⁰⁴⁸⁵ is an apocalyptic number.

100485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100485 is an abundant number, since it is smaller than the sum of its proper divisors (124155).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100485 is a wasteful number, since it uses less digits than its factorization.

100485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 100485 is about 316.9936907889. The cubic root of 100485 is about 46.4908063683.

Adding to 100485 its reverse (584001), we get a palindrome (684486).

It can be divided in two parts, 1004 and 85, that added together give a square (1089 = 33²).

The spelling of 100485 in words is "one hundred thousand, four hundred eighty-five".