1346861 has 2 divisors, whose sum is σ = 1346862. Its totient is φ = 1346860.

The previous prime is 1346843. The next prime is 1346881. The reversal of 1346861 is 1686431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 697225 + 649636 = 835^2 + 806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1346861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1346831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673430 + 673431.

It is an arithmetic number, because the mean of its divisors is an integer number (673431).

2^1346861 is an apocalyptic number.

It is an amenable number.

1346861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346861 is an equidigital number, since it uses as much as digits as its factorization.

1346861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 1346861 is about 1160.5434072020. The cubic root of 1346861 is about 110.4352179265.

The spelling of 1346861 in words is "one million, three hundred forty-six thousand, eight hundred sixty-one".