1129747875 has 32 divisors (see below), whose sum is σ = 1889472000. Its totient is φ = 599464800.

The previous prime is 1129747873. The next prime is 1129747889. The reversal of 1129747875 is 5787479211.

It is not a de Polignac number, because 1129747875 - 2¹ = 1129747873 is a prime.

It is a super-2 number, since 2×1129747875² = 2552660522134031250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1129747873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67056 + ... + 82194.

It is an arithmetic number, because the mean of its divisors is an integer number (59046000).

Almost surely, 2^1129747875 is an apocalyptic number.

1129747875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1129747875 is a deficient number, since it is larger than the sum of its proper divisors (759724125).

1129747875 is a wasteful number, since it uses less digits than its factorization.

1129747875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15356 (or 15346 counting only the distinct ones).

The product of its digits is 987840, while the sum is 51.

The square root of 1129747875 is about 33611.7222855360. The cubic root of 1129747875 is about 1041.5029659198.

The spelling of 1129747875 in words is "one billion, one hundred twenty-nine million, seven hundred forty-seven thousand, eight hundred seventy-five".