1129811518 has 8 divisors (see below), whose sum is σ = 1848782520. Its totient is φ = 513550680.

The previous prime is 1129811513. The next prime is 1129811519. The reversal of 1129811518 is 8151189211.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129811513) 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 3 ways as a sum of consecutive naturals, for example, 25677513 + ... + 25677556.

It is an arithmetic number, because the mean of its divisors is an integer number (231097815).

Almost surely, 2^1129811518 is an apocalyptic number.

1129811518 is a deficient number, since it is larger than the sum of its proper divisors (718971002).

1129811518 is a wasteful number, since it uses less digits than its factorization.

1129811518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51355082.

The product of its digits is 5760, while the sum is 37.

The square root of 1129811518 is about 33612.6690103598. The cubic root of 1129811518 is about 1041.5225228286.

The spelling of 1129811518 in words is "one billion, one hundred twenty-nine million, eight hundred eleven thousand, five hundred eighteen".