1129566399 has 8 divisors (see below), whose sum is σ = 1621941552. Its totient is φ = 695117760.

The previous prime is 1129566367. The next prime is 1129566407. The reversal of 1129566399 is 9936659211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1129566399 - 2⁵ = 1129566367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129566349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14481582 + ... + 14481659.

It is an arithmetic number, because the mean of its divisors is an integer number (202742694).

Almost surely, 2^1129566399 is an apocalyptic number.

1129566399 is a deficient number, since it is larger than the sum of its proper divisors (492375153).

1129566399 is a wasteful number, since it uses less digits than its factorization.

1129566399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28963257.

The product of its digits is 787320, while the sum is 51.

The square root of 1129566399 is about 33609.0225832290. The cubic root of 1129566399 is about 1041.4471959798.

The spelling of 1129566399 in words is "one billion, one hundred twenty-nine million, five hundred sixty-six thousand, three hundred ninety-nine".