1129144512 has 56 divisors (see below), whose sum is σ = 2990748400. Its totient is φ = 375975936.

The previous prime is 1129144421. The next prime is 1129144519. The reversal of 1129144512 is 2154419211.

It is a self number, because there is not a number n which added to its sum of digits gives 1129144512.

It is not an unprimeable number, because it can be changed into a prime (1129144519) 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 7 ways as a sum of consecutive naturals, for example, 214164 + ... + 219372.

Almost surely, 2^1129144512 is an apocalyptic number.

1129144512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1129144512 is an abundant number, since it is smaller than the sum of its proper divisors (1861603888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1129144512 is a wasteful number, since it uses less digits than its factorization.

1129144512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6353 (or 6343 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 1129144512 is about 33602.7456021082. The cubic root of 1129144512 is about 1041.3175215177.

The spelling of 1129144512 in words is "one billion, one hundred twenty-nine million, one hundred forty-four thousand, five hundred twelve".