1166214249 has 12 divisors (see below), whose sum is σ = 1687119876. Its totient is φ = 776281632.

The previous prime is 1166214239. The next prime is 1166214253. The reversal of 1166214249 is 9424126611.

1166214249 is a `hidden beast` number, since 1 + 1 + 6 + 621 + 4 + 24 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 357210000 + 809004249 = 18900^2 + 28443^2 .

It is not a de Polignac number, because 1166214249 - 2⁴ = 1166214233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1166214239) 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 in 11 ways as a sum of consecutive naturals, for example, 93342 + ... + 105095.

It is an arithmetic number, because the mean of its divisors is an integer number (140593323).

Almost surely, 2^1166214249 is an apocalyptic number.

It is an amenable number.

1166214249 is a deficient number, since it is larger than the sum of its proper divisors (520905627).

1166214249 is a wasteful number, since it uses less digits than its factorization.

1166214249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199096 (or 199093 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1166214249 is about 34149.8791945155. The cubic root of 1166214249 is about 1052.5905042697.

The spelling of 1166214249 in words is "one billion, one hundred sixty-six million, two hundred fourteen thousand, two hundred forty-nine".