1180643 has 2 divisors, whose sum is σ = 1180644. Its totient is φ = 1180642.

The previous prime is 1180637. The next prime is 1180657. The reversal of 1180643 is 3460811.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1180643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1180693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590321 + 590322.

It is an arithmetic number, because the mean of its divisors is an integer number (590322).

2^1180643 is an apocalyptic number.

1180643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1180643 is an equidigital number, since it uses as much as digits as its factorization.

1180643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1180643 is about 1086.5739735517. The cubic root of 1180643 is about 105.6913711682.

The spelling of 1180643 in words is "one million, one hundred eighty thousand, six hundred forty-three".