1346021 has 2 divisors, whose sum is σ = 1346022. Its totient is φ = 1346020.

The previous prime is 1346003. The next prime is 1346039. The reversal of 1346021 is 1206431.

It is a balanced prime because it is at equal distance from previous prime (1346003) and next prime (1346039).

It can be written as a sum of positive squares in only one way, i.e., 923521 + 422500 = 961^2 + 650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346021 - 2⁶ = 1345957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673010 + 673011.

It is an arithmetic number, because the mean of its divisors is an integer number (673011).

2^1346021 is an apocalyptic number.

It is an amenable number.

1346021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346021 is an equidigital number, since it uses as much as digits as its factorization.

1346021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1346021 is about 1160.1814513256. The cubic root of 1346021 is about 110.4122546870.

The spelling of 1346021 in words is "one million, three hundred forty-six thousand, twenty-one".