1243109552 has 20 divisors (see below), whose sum is σ = 2411943840. Its totient is φ = 620672448.

The previous prime is 1243109551. The next prime is 1243109603. The reversal of 1243109552 is 2559013421.

It is not an unprimeable number, because it can be changed into a prime (1243109551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43448 + ... + 66135.

It is an arithmetic number, because the mean of its divisors is an integer number (120597192).

Almost surely, 2^1243109552 is an apocalyptic number.

It is an amenable number.

1243109552 is a deficient number, since it is larger than the sum of its proper divisors (1168834288).

1243109552 is a wasteful number, since it uses less digits than its factorization.

1243109552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110300 (or 110294 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1243109552 is about 35257.7587489619. The cubic root of 1243109552 is about 1075.2343608737.

The spelling of 1243109552 in words is "one billion, two hundred forty-three million, one hundred nine thousand, five hundred fifty-two".