3045421 has 2 divisors, whose sum is σ = 3045422. Its totient is φ = 3045420.

The previous prime is 3045379. The next prime is 3045437. The reversal of 3045421 is 1245403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2208196 + 837225 = 1486^2 + 915^2 .

It is a cyclic number.

It is not a de Polignac number, because 3045421 - 2⁷ = 3045293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3045451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1522710 + 1522711.

It is an arithmetic number, because the mean of its divisors is an integer number (1522711).

Almost surely, 2^3045421 is an apocalyptic number.

It is an amenable number.

3045421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3045421 is an equidigital number, since it uses as much as digits as its factorization.

3045421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 3045421 is about 1745.1134633599. The cubic root of 3045421 is about 144.9491855238.

It can be divided in two parts, 30 and 45421, that added together give a triangular number (45451 = T₃₀₁).

The spelling of 3045421 in words is "three million, forty-five thousand, four hundred twenty-one".