1024198309 has 2 divisors, whose sum is σ = 1024198310. Its totient is φ = 1024198308.

The previous prime is 1024198297. The next prime is 1024198361. The reversal of 1024198309 is 9038914201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1020994209 + 3204100 = 31953^2 + 1790^2 .

It is a cyclic number.

It is not a de Polignac number, because 1024198309 - 2²³ = 1015809701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1024198709) 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, 512099154 + 512099155.

It is an arithmetic number, because the mean of its divisors is an integer number (512099155).

Almost surely, 2^1024198309 is an apocalyptic number.

It is an amenable number.

1024198309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1024198309 is an equidigital number, since it uses as much as digits as its factorization.

1024198309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1024198309 is about 32003.0984281210. The cubic root of 1024198309 is about 1008.0019017795.

The spelling of 1024198309 in words is "one billion, twenty-four million, one hundred ninety-eight thousand, three hundred nine".