1131274752 has 80 divisors (see below), whose sum is σ = 3034627200. Its totient is φ = 374484992.

The previous prime is 1131274751. The next prime is 1131274759. The reversal of 1131274752 is 2574721311.

It is not an unprimeable number, because it can be changed into a prime (1131274751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226393 + ... + 231335.

It is an arithmetic number, because the mean of its divisors is an integer number (37932840).

Almost surely, 2^1131274752 is an apocalyptic number.

1131274752 is a gapful number since it is divisible by the number (12) 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 1131274752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1517313600).

1131274752 is an abundant number, since it is smaller than the sum of its proper divisors (1903352448).

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

1131274752 is an equidigital number, since it uses as much as digits as its factorization.

1131274752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113 (or 5097 counting only the distinct ones).

The product of its digits is 11760, while the sum is 33.

The square root of 1131274752 is about 33634.4280760057. The cubic root of 1131274752 is about 1041.9719587750.

The spelling of 1131274752 in words is "one billion, one hundred thirty-one million, two hundred seventy-four thousand, seven hundred fifty-two".