1129512660 has 24 divisors (see below), whose sum is σ = 3162635616. Its totient is φ = 301203360.

The previous prime is 1129512647. The next prime is 1129512701. The reversal of 1129512660 is 662159211.

It is a congruent number.

It is an unprimeable number.

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, 9412546 + ... + 9412665.

It is an arithmetic number, because the mean of its divisors is an integer number (131776484).

Almost surely, 2^1129512660 is an apocalyptic number.

1129512660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1129512660 is an abundant number, since it is smaller than the sum of its proper divisors (2033122956).

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

1129512660 is a wasteful number, since it uses less digits than its factorization.

1129512660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18825223 (or 18825221 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 1129512660 is about 33608.2231009020. The cubic root of 1129512660 is about 1041.4306801384.

The spelling of 1129512660 in words is "one billion, one hundred twenty-nine million, five hundred twelve thousand, six hundred sixty".