1129911528 has 32 divisors (see below), whose sum is σ = 2990943360. Its totient is φ = 354481920.

The previous prime is 1129911509. The next prime is 1129911557. The reversal of 1129911528 is 8251199211.

It is a happy number.

It is a super-2 number, since 2×1129911528² = 2553400122214589568, which contains 22 as substring.

It is an unprimeable number.

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, 1384288 + ... + 1385103.

It is an arithmetic number, because the mean of its divisors is an integer number (93466980).

Almost surely, 2^1129911528 is an apocalyptic number.

It is an amenable number.

1129911528 is an abundant number, since it is smaller than the sum of its proper divisors (1861031832).

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

1129911528 is a wasteful number, since it uses less digits than its factorization.

1129911528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769417 (or 2769413 counting only the distinct ones).

The product of its digits is 12960, while the sum is 39.

The square root of 1129911528 is about 33614.1566605500. The cubic root of 1129911528 is about 1041.5532534984.

The spelling of 1129911528 in words is "one billion, one hundred twenty-nine million, nine hundred eleven thousand, five hundred twenty-eight".