3445121 has 2 divisors, whose sum is σ = 3445122. Its totient is φ = 3445120.

The previous prime is 3445109. The next prime is 3445153. The reversal of 3445121 is 1215443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3441025 + 4096 = 1855^2 + 64^2 .

It is a cyclic number.

It is not a de Polignac number, because 3445121 - 2¹⁰ = 3444097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3445093 and 3445102.

It is not a weakly prime, because it can be changed into another prime (3445021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1722560 + 1722561.

It is an arithmetic number, because the mean of its divisors is an integer number (1722561).

Almost surely, 2^3445121 is an apocalyptic number.

It is an amenable number.

3445121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3445121 is an equidigital number, since it uses as much as digits as its factorization.

3445121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 20.

The square root of 3445121 is about 1856.1037147746. The cubic root of 3445121 is about 151.0317170923.

The spelling of 3445121 in words is "three million, four hundred forty-five thousand, one hundred twenty-one".