2104161 has 8 divisors (see below), whose sum is σ = 2874144. Its totient is φ = 1368480.

The previous prime is 2104159. The next prime is 2104163. The reversal of 2104161 is 1614012.

It is an interprime number because it is at equal distance from previous prime (2104159) and next prime (2104163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2104161 - 2¹ = 2104159 is a prime.

2104161 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2104161.

It is not an unprimeable number, because it can be changed into a prime (2104163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8431 + ... + 8676.

It is an arithmetic number, because the mean of its divisors is an integer number (359268).

2^2104161 is an apocalyptic number.

It is an amenable number.

2104161 is a deficient number, since it is larger than the sum of its proper divisors (769983).

2104161 is a wasteful number, since it uses less digits than its factorization.

2104161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17151.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2104161 is about 1450.5726455438. The cubic root of 2104161 is about 128.1424399025.

Adding to 2104161 its reverse (1614012), we get a palindrome (3718173).

It can be divided in two parts, 210 and 4161, that added together give a triangular number (4371 = T₉₃).

The spelling of 2104161 in words is "two million, one hundred four thousand, one hundred sixty-one".