1166203129 has 48 divisors (see below), whose sum is σ = 1526515200. Its totient is φ = 866533248.

The previous prime is 1166203127. The next prime is 1166203133. The reversal of 1166203129 is 9213026611.

It is not a de Polignac number, because 1166203129 - 2¹ = 1166203127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1166203129.

It is not an unprimeable number, because it can be changed into a prime (1166203127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4879392 + ... + 4879630.

It is an arithmetic number, because the mean of its divisors is an integer number (31802400).

Almost surely, 2^1166203129 is an apocalyptic number.

It is an amenable number.

1166203129 is a deficient number, since it is larger than the sum of its proper divisors (360312071).

1166203129 is a wasteful number, since it uses less digits than its factorization.

1166203129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1166203129 is about 34149.7163824240. The cubic root of 1166203129 is about 1052.5871587313.

The spelling of 1166203129 in words is "one billion, one hundred sixty-six million, two hundred three thousand, one hundred twenty-nine".