1166125027 has 4 divisors (see below), whose sum is σ = 1188127440. Its totient is φ = 1144122616.

The previous prime is 1166124977. The next prime is 1166125039. The reversal of 1166125027 is 7205216611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166125027 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1166125027.

It is not an unprimeable number, because it can be changed into a prime (1166125327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11001127 + ... + 11001232.

It is an arithmetic number, because the mean of its divisors is an integer number (297031860).

Almost surely, 2^1166125027 is an apocalyptic number.

1166125027 is a deficient number, since it is larger than the sum of its proper divisors (22002413).

1166125027 is an equidigital number, since it uses as much as digits as its factorization.

1166125027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22002412.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1166125027 is about 34148.5728398714. The cubic root of 1166125027 is about 1052.5636605386.

The spelling of 1166125027 in words is "one billion, one hundred sixty-six million, one hundred twenty-five thousand, twenty-seven".