1266043 has 2 divisors, whose sum is σ = 1266044. Its totient is φ = 1266042.

The previous prime is 1266019. The next prime is 1266047. The reversal of 1266043 is 3406621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1266043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1266047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633021 + 633022.

It is an arithmetic number, because the mean of its divisors is an integer number (633022).

2^1266043 is an apocalyptic number.

1266043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266043 is an equidigital number, since it uses as much as digits as its factorization.

1266043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1266043 is about 1125.1857624410. The cubic root of 1266043 is about 108.1806248143.

The spelling of 1266043 in words is "one million, two hundred sixty-six thousand, forty-three".