1131042852 has 30 divisors (see below), whose sum is σ = 2956770278. Its totient is φ = 377014176.

The previous prime is 1131042841. The next prime is 1131042853. The reversal of 1131042852 is 2582401311.

It can be written as a sum of positive squares in only one way, i.e., 1129363236 + 1679616 = 33606^2 + 1296^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1131042853) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1745113 + ... + 1745760.

Almost surely, 2^1131042852 is an apocalyptic number.

1131042852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131042852 is an abundant number, since it is smaller than the sum of its proper divisors (1825727426).

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

1131042852 is a wasteful number, since it uses less digits than its factorization.

1131042852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490889 (or 3490878 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1131042852 is about 33630.9805387830. The cubic root of 1131042852 is about 1041.9007559690.

The spelling of 1131042852 in words is "one billion, one hundred thirty-one million, forty-two thousand, eight hundred fifty-two".