1166443135 has 32 divisors (see below), whose sum is σ = 1650958848. Its totient is φ = 779963520.

The previous prime is 1166443121. The next prime is 1166443199. The reversal of 1166443135 is 5313446611.

It is not a de Polignac number, because 1166443135 - 2¹³ = 1166434943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1166443135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184944 + ... + 191146.

It is an arithmetic number, because the mean of its divisors is an integer number (51592464).

Almost surely, 2^1166443135 is an apocalyptic number.

1166443135 is a deficient number, since it is larger than the sum of its proper divisors (484515713).

1166443135 is a wasteful number, since it uses less digits than its factorization.

1166443135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6495.

The product of its digits is 25920, while the sum is 34.

The square root of 1166443135 is about 34153.2302279008. The cubic root of 1166443135 is about 1052.6593616775.

Adding to 1166443135 its reverse (5313446611), we get a palindrome (6479889746).

The spelling of 1166443135 in words is "one billion, one hundred sixty-six million, four hundred forty-three thousand, one hundred thirty-five".