1129645752 has 32 divisors (see below), whose sum is σ = 2884204800. Its totient is φ = 368536544.

The previous prime is 1129645747. The next prime is 1129645757. The reversal of 1129645752 is 2575469211.

It is an interprime number because it is at equal distance from previous prime (1129645747) and next prime (1129645757).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129645757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499602 + ... + 501857.

It is an arithmetic number, because the mean of its divisors is an integer number (90131400).

Almost surely, 2^1129645752 is an apocalyptic number.

1129645752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1129645752 is an abundant number, since it is smaller than the sum of its proper divisors (1754559048).

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

1129645752 is a wasteful number, since it uses less digits than its factorization.

1129645752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001515 (or 1001511 counting only the distinct ones).

The product of its digits is 151200, while the sum is 42.

The square root of 1129645752 is about 33610.2030937036. The cubic root of 1129645752 is about 1041.4715829258.

The spelling of 1129645752 in words is "one billion, one hundred twenty-nine million, six hundred forty-five thousand, seven hundred fifty-two".