1215040339 has 2 divisors, whose sum is σ = 1215040340. Its totient is φ = 1215040338.

The previous prime is 1215040313. The next prime is 1215040361. The reversal of 1215040339 is 9330405121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1215040339 - 2¹¹ = 1215038291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1215040039) 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, 607520169 + 607520170.

It is an arithmetic number, because the mean of its divisors is an integer number (607520170).

Almost surely, 2^1215040339 is an apocalyptic number.

1215040339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215040339 is an equidigital number, since it uses as much as digits as its factorization.

1215040339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1215040339 is about 34857.4287491203. The cubic root of 1215040339 is about 1067.0798003948.

The spelling of 1215040339 in words is "one billion, two hundred fifteen million, forty thousand, three hundred thirty-nine".