4121204545 has 8 divisors (see below), whose sum is σ = 4981544424. Its totient is φ = 3272897664.

The previous prime is 4121204537. The next prime is 4121204579. The reversal of 4121204545 is 5454021214.

4121204545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 293060161 + 3828144384 = 17119^2 + 61872^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4121204545 - 2³ = 4121204537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3007494 + ... + 3008863.

It is an arithmetic number, because the mean of its divisors is an integer number (622693053).

Almost surely, 2^4121204545 is an apocalyptic number.

It is an amenable number.

4121204545 is a deficient number, since it is larger than the sum of its proper divisors (860339879).

4121204545 is a wasteful number, since it uses less digits than its factorization.

4121204545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016499.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 4121204545 is about 64196.6085163383. The cubic root of 4121204545 is about 1603.2751331618.

Adding to 4121204545 its reverse (5454021214), we get a palindrome (9575225759).

The spelling of 4121204545 in words is "four billion, one hundred twenty-one million, two hundred four thousand, five hundred forty-five".