1300440149 has 2 divisors, whose sum is σ = 1300440150. Its totient is φ = 1300440148.

The previous prime is 1300440139. The next prime is 1300440179. The reversal of 1300440149 is 9410440031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 990046225 + 310393924 = 31465^2 + 17618^2 .

It is a cyclic number.

It is not a de Polignac number, because 1300440149 - 2⁸ = 1300439893 is a prime.

It is a super-2 number, since 2×1300440149² = 3382289162262284402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1300440139) 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, 650220074 + 650220075.

It is an arithmetic number, because the mean of its divisors is an integer number (650220075).

Almost surely, 2^1300440149 is an apocalyptic number.

It is an amenable number.

1300440149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300440149 is an equidigital number, since it uses as much as digits as its factorization.

1300440149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1300440149 is about 36061.6160064964. The cubic root of 1300440149 is about 1091.5160423641.

The spelling of 1300440149 in words is "one billion, three hundred million, four hundred forty thousand, one hundred forty-nine".