1131246056 has 32 divisors (see below), whose sum is σ = 2147440680. Its totient is φ = 558624000.

The previous prime is 1131246049. The next prime is 1131246059. The reversal of 1131246056 is 6506421311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1131245956 + 100 = 33634^2 + 10^2 .

It is not an unprimeable number, because it can be changed into a prime (1131246059) 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, 370970 + ... + 374006.

Almost surely, 2^1131246056 is an apocalyptic number.

It is an amenable number.

1131246056 is a deficient number, since it is larger than the sum of its proper divisors (1016194624).

1131246056 is a wasteful number, since it uses less digits than its factorization.

1131246056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3605 (or 3601 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1131246056 is about 33634.0014865909. The cubic root of 1131246056 is about 1041.9631484542.

Adding to 1131246056 its reverse (6506421311), we get a palindrome (7637667367).

The spelling of 1131246056 in words is "one billion, one hundred thirty-one million, two hundred forty-six thousand, fifty-six".