100004161 has 4 divisors (see below), whose sum is σ = 104352192. Its totient is φ = 95656132.

The previous prime is 100004159. The next prime is 100004167. The reversal of 100004161 is 161400001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161400001 = 7 ⋅23057143.

It is a cyclic number.

It is not a de Polignac number, because 100004161 - 2¹ = 100004159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100004167) 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, 2173981 + ... + 2174026.

It is an arithmetic number, because the mean of its divisors is an integer number (26088048).

Almost surely, 2^100004161 is an apocalyptic number.

It is an amenable number.

100004161 is a deficient number, since it is larger than the sum of its proper divisors (4348031).

100004161 is an equidigital number, since it uses as much as digits as its factorization.

100004161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4348030.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 100004161 is about 10000.2080478358. The cubic root of 100004161 is about 464.1653211557.

Adding to 100004161 its reverse (161400001), we get a palindrome (261404162).

It can be divided in two parts, 10000 and 4161, that added together give a square (14161 = 119²).

The spelling of 100004161 in words is "one hundred million, four thousand, one hundred sixty-one".