1191012448 has 12 divisors (see below), whose sum is σ = 2344805820. Its totient is φ = 595506208.

The previous prime is 1191012443. The next prime is 1191012451. The reversal of 1191012448 is 8442101911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1191012443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18609538 + ... + 18609601.

It is an arithmetic number, because the mean of its divisors is an integer number (195400485).

Almost surely, 2^1191012448 is an apocalyptic number.

It is an amenable number.

1191012448 is a deficient number, since it is larger than the sum of its proper divisors (1153793372).

1191012448 is an equidigital number, since it uses as much as digits as its factorization.

1191012448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37219149 (or 37219141 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 1191012448 is about 34511.0482019889. The cubic root of 1191012448 is about 1059.9989462432.

The spelling of 1191012448 in words is "one billion, one hundred ninety-one million, twelve thousand, four hundred forty-eight".