1099146289 has 2 divisors, whose sum is σ = 1099146290. Its totient is φ = 1099146288.

The previous prime is 1099146239. The next prime is 1099146317. The reversal of 1099146289 is 9826419901.

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., 580810000 + 518336289 = 24100^2 + 22767^2 .

It is a cyclic number.

It is not a de Polignac number, because 1099146289 - 2⁹ = 1099145777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1099146239) 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 as a sum of consecutive naturals, namely, 549573144 + 549573145.

It is an arithmetic number, because the mean of its divisors is an integer number (549573145).

Almost surely, 2^1099146289 is an apocalyptic number.

It is an amenable number.

1099146289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099146289 is an equidigital number, since it uses as much as digits as its factorization.

1099146289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 1099146289 is about 33153.3752278708. The cubic root of 1099146289 is about 1032.0129951617.

The spelling of 1099146289 in words is "one billion, ninety-nine million, one hundred forty-six thousand, two hundred eighty-nine".