100004 has 12 divisors (see below), whose sum is σ = 182784. Its totient is φ = 47784.

The previous prime is 100003. The next prime is 100019. The reversal of 100004 is 400001.

It is not an unprimeable number, because it can be changed into a prime (100003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452 + ... + 635.

It is an arithmetic number, because the mean of its divisors is an integer number (15232).

2¹⁰⁰⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

100004 is a deficient number, since it is larger than the sum of its proper divisors (82780).

100004 is a wasteful number, since it uses less digits than its factorization.

100004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1112 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 100004 is about 316.2340905089. The cubic root of 100004 is about 46.4165072064.

Adding to 100004 its reverse (400001), we get a palindrome (500005).

It can be divided in two parts, 10000 and 4, that multiplied together give a square (40000 = 200²).

The spelling of 100004 in words is "one hundred thousand, four", and thus it is an iban number.