1289248196 has 6 divisors (see below), whose sum is σ = 2256184350. Its totient is φ = 644624096.

The previous prime is 1289248151. The next prime is 1289248199. The reversal of 1289248196 is 6918429821.

It can be written as a sum of positive squares in only one way, i.e., 1220524096 + 68724100 = 34936^2 + 8290^2 .

It is not an unprimeable number, because it can be changed into a prime (1289248199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161156021 + ... + 161156028.

It is an arithmetic number, because the mean of its divisors is an integer number (376030725).

Almost surely, 2^1289248196 is an apocalyptic number.

It is an amenable number.

1289248196 is a deficient number, since it is larger than the sum of its proper divisors (966936154).

1289248196 is a wasteful number, since it uses less digits than its factorization.

1289248196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322312053 (or 322312051 counting only the distinct ones).

The product of its digits is 497664, while the sum is 50.

The square root of 1289248196 is about 35906.1024896883. The cubic root of 1289248196 is about 1088.3757183948.

The spelling of 1289248196 in words is "one billion, two hundred eighty-nine million, two hundred forty-eight thousand, one hundred ninety-six".