1300243069 has 2 divisors, whose sum is σ = 1300243070. Its totient is φ = 1300243068.

The previous prime is 1300243051. The next prime is 1300243081. The reversal of 1300243069 is 9603420031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1196468100 + 103774969 = 34590^2 + 10187^2 .

It is a cyclic number.

It is not a de Polignac number, because 1300243069 - 2²¹ = 1298145917 is a prime.

It is a super-2 number, since 2×1300243069² = 3381264076965077522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1300243019) 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, 650121534 + 650121535.

It is an arithmetic number, because the mean of its divisors is an integer number (650121535).

Almost surely, 2^1300243069 is an apocalyptic number.

It is an amenable number.

1300243069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300243069 is an equidigital number, since it uses as much as digits as its factorization.

1300243069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1300243069 is about 36058.8833576416. The cubic root of 1300243069 is about 1091.4609003033.

The spelling of 1300243069 in words is "one billion, three hundred million, two hundred forty-three thousand, sixty-nine".