1456643 has 2 divisors, whose sum is σ = 1456644. Its totient is φ = 1456642.

The previous prime is 1456633. The next prime is 1456657. The reversal of 1456643 is 3466541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1456643 - 2⁴ = 1456627 is a prime.

It is not a weakly prime, because it can be changed into another prime (1456603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728321 + 728322.

It is an arithmetic number, because the mean of its divisors is an integer number (728322).

2^1456643 is an apocalyptic number.

1456643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1456643 is an equidigital number, since it uses as much as digits as its factorization.

1456643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 1456643 is about 1206.9146614405. The cubic root of 1456643 is about 113.3577042937.

The spelling of 1456643 in words is "one million, four hundred fifty-six thousand, six hundred forty-three".