1152563643 has 72 divisors (see below), whose sum is σ = 2149018560. Its totient is φ = 588440160.

The previous prime is 1152563591. The next prime is 1152563677. The reversal of 1152563643 is 3463652511.

1152563643 is a `hidden beast` number, since 1 + 1 + 5 + 2 + 5 + 6 + 3 + 643 = 666.

It is not a de Polignac number, because 1152563643 - 2¹² = 1152559547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1152563598 and 1152563607.

It is not an unprimeable number, because it can be changed into a prime (1152563683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 284196 + ... + 288222.

It is an arithmetic number, because the mean of its divisors is an integer number (29847480).

Almost surely, 2^1152563643 is an apocalyptic number.

1152563643 is a deficient number, since it is larger than the sum of its proper divisors (996454917).

1152563643 is a wasteful number, since it uses less digits than its factorization.

1152563643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117 (or 4107 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 1152563643 is about 33949.4277271355. The cubic root of 1152563643 is about 1048.4674976946.

The spelling of 1152563643 in words is "one billion, one hundred fifty-two million, five hundred sixty-three thousand, six hundred forty-three".