1166214039 has 4 divisors (see below), whose sum is σ = 1554952056. Its totient is φ = 777476024.

The previous prime is 1166214029. The next prime is 1166214047. The reversal of 1166214039 is 9304126611.

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

It is a cyclic number.

It is not a de Polignac number, because 1166214039 - 2¹³ = 1166205847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166214019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194369004 + ... + 194369009.

It is an arithmetic number, because the mean of its divisors is an integer number (388738014).

Almost surely, 2^1166214039 is an apocalyptic number.

1166214039 is a deficient number, since it is larger than the sum of its proper divisors (388738017).

1166214039 is an equidigital number, since it uses as much as digits as its factorization.

1166214039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388738016.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1166214039 is about 34149.8761198339. The cubic root of 1166214039 is about 1052.5904410897.

The spelling of 1166214039 in words is "one billion, one hundred sixty-six million, two hundred fourteen thousand, thirty-nine".