2043604121 has 8 divisors (see below), whose sum is σ = 2230953480. Its totient is φ = 1860561792.

The previous prime is 2043604097. The next prime is 2043604139. The reversal of 2043604121 is 1214063402.

It can be written as a sum of positive squares in 4 ways, for example, as 21752896 + 2021851225 = 4664^2 + 44965^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2043604121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2043604421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1075766 + ... + 1077663.

It is an arithmetic number, because the mean of its divisors is an integer number (278869185).

Almost surely, 2^2043604121 is an apocalyptic number.

It is an amenable number.

2043604121 is a deficient number, since it is larger than the sum of its proper divisors (187349359).

2043604121 is a wasteful number, since it uses less digits than its factorization.

2043604121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153515.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2043604121 is about 45206.2398458443. The cubic root of 2043604121 is about 1269.0115939818.

Adding to 2043604121 its reverse (1214063402), we get a palindrome (3257667523).

The spelling of 2043604121 in words is "two billion, forty-three million, six hundred four thousand, one hundred twenty-one".