1198096681 has 2 divisors, whose sum is σ = 1198096682. Its totient is φ = 1198096680.

The previous prime is 1198096639. The next prime is 1198096687. The reversal of 1198096681 is 1866908911.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1122250000 + 75846681 = 33500^2 + 8709^2 .

It is a cyclic number.

It is not a de Polignac number, because 1198096681 - 2⁷ = 1198096553 is a prime.

It is a super-2 number, since 2×1198096681² = 2870871314046431522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1198096687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599048340 + 599048341.

It is an arithmetic number, because the mean of its divisors is an integer number (599048341).

Almost surely, 2^1198096681 is an apocalyptic number.

It is an amenable number.

1198096681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198096681 is an equidigital number, since it uses as much as digits as its factorization.

1198096681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 49.

The square root of 1198096681 is about 34613.5332059586. The cubic root of 1198096681 is about 1062.0964445923.

The spelling of 1198096681 in words is "one billion, one hundred ninety-eight million, ninety-six thousand, six hundred eighty-one".