1125571968 has 96 divisors (see below), whose sum is σ = 3326615760. Its totient is φ = 365036544.

The previous prime is 1125571961. The next prime is 1125571981. The reversal of 1125571968 is 8691755211.

1125571968 is a `hidden beast` number, since 1 + 1 + 2 + 557 + 1 + 96 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125571961) 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 11 ways as a sum of consecutive naturals, for example, 29421 + ... + 55827.

Almost surely, 2^1125571968 is an apocalyptic number.

1125571968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125571968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1663307880).

1125571968 is an abundant number, since it is smaller than the sum of its proper divisors (2201043792).

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

1125571968 is a wasteful number, since it uses less digits than its factorization.

1125571968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26464 (or 26449 counting only the distinct ones).

The product of its digits is 151200, while the sum is 45.

The square root of 1125571968 is about 33549.5449745596. The cubic root of 1125571968 is about 1040.2181396464.

The spelling of 1125571968 in words is "one billion, one hundred twenty-five million, five hundred seventy-one thousand, nine hundred sixty-eight".