2103104 has 28 divisors (see below), whose sum is σ = 4421124. Its totient is φ = 989184.

The previous prime is 2103103. The next prime is 2103107. The reversal of 2103104 is 4013012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1537600 + 565504 = 1240^2 + 752^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103103) 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, 122 + ... + 2054.

2^2103104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2210562).

2103104 is an abundant number, since it is smaller than the sum of its proper divisors (2318020).

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

2103104 is a wasteful number, since it uses less digits than its factorization.

2103104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962 (or 1952 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2103104 is about 1450.2082609060. The cubic root of 2103104 is about 128.1209793702.

Adding to 2103104 its reverse (4013012), we get a palindrome (6116116).

The spelling of 2103104 in words is "two million, one hundred three thousand, one hundred four".