1324999189 has 2 divisors, whose sum is σ = 1324999190. Its totient is φ = 1324999188.

The previous prime is 1324999177. The next prime is 1324999201. The reversal of 1324999189 is 9819994231.

It is a balanced prime because it is at equal distance from previous prime (1324999177) and next prime (1324999201).

It can be written as a sum of positive squares in only one way, i.e., 1009332900 + 315666289 = 31770^2 + 17767^2 .

It is an emirp because it is prime and its reverse (9819994231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1324999189 - 2⁹ = 1324998677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1324909189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662499594 + 662499595.

It is an arithmetic number, because the mean of its divisors is an integer number (662499595).

Almost surely, 2^1324999189 is an apocalyptic number.

It is an amenable number.

1324999189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1324999189 is an equidigital number, since it uses as much as digits as its factorization.

1324999189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 55.

The square root of 1324999189 is about 36400.5383064592. The cubic root of 1324999189 is about 1098.3443934239.

The spelling of 1324999189 in words is "one billion, three hundred twenty-four million, nine hundred ninety-nine thousand, one hundred eighty-nine".