1166507 has 2 divisors, whose sum is σ = 1166508. Its totient is φ = 1166506.

The previous prime is 1166497. The next prime is 1166527. The reversal of 1166507 is 7056611.

It is a weak prime.

It is an emirp because it is prime and its reverse (7056611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1166527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583253 + 583254.

It is an arithmetic number, because the mean of its divisors is an integer number (583254).

2^1166507 is an apocalyptic number.

1166507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166507 is an equidigital number, since it uses as much as digits as its factorization.

1166507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1166507 is about 1080.0495359010. The cubic root of 1166507 is about 105.2678573034.

The spelling of 1166507 in words is "one million, one hundred sixty-six thousand, five hundred seven".