1346309 has 2 divisors, whose sum is σ = 1346310. Its totient is φ = 1346308.

The previous prime is 1346273. The next prime is 1346311. The reversal of 1346309 is 9036431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1329409 + 16900 = 1153^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346309 - 2¹² = 1342213 is a prime.

It is a Sophie Germain prime.

Together with 1346311, it forms a pair of twin primes.

It is a Chen 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 (1346369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673154 + 673155.

It is an arithmetic number, because the mean of its divisors is an integer number (673155).

2^1346309 is an apocalyptic number.

It is an amenable number.

1346309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346309 is an equidigital number, since it uses as much as digits as its factorization.

1346309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1346309 is about 1160.3055632031. The cubic root of 1346309 is about 110.4201288737.

The spelling of 1346309 in words is "one million, three hundred forty-six thousand, three hundred nine".