3445204121 has 4 divisors (see below), whose sum is σ = 3492398772. Its totient is φ = 3398009472.

The previous prime is 3445204111. The next prime is 3445204123. The reversal of 3445204121 is 1214025443.

3445204121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1214025443 = 6761 ⋅179563.

It can be written as a sum of positive squares in 2 ways, for example, as 2189210521 + 1255993600 = 46789^2 + 35440^2 .

It is a cyclic number.

It is not a de Polignac number, because 3445204121 - 2²⁶ = 3378095257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3445204123) 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, 23597216 + ... + 23597361.

It is an arithmetic number, because the mean of its divisors is an integer number (873099693).

Almost surely, 2^3445204121 is an apocalyptic number.

It is an amenable number.

3445204121 is a deficient number, since it is larger than the sum of its proper divisors (47194651).

3445204121 is an equidigital number, since it uses as much as digits as its factorization.

3445204121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47194650.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 3445204121 is about 58695.8611913992. The cubic root of 3445204121 is about 1510.3293173817.

Adding to 3445204121 its reverse (1214025443), we get a palindrome (4659229564).

The spelling of 3445204121 in words is "three billion, four hundred forty-five million, two hundred four thousand, one hundred twenty-one".