1215053017 has 2 divisors, whose sum is σ = 1215053018. Its totient is φ = 1215053016.

The previous prime is 1215053011. The next prime is 1215053041. The reversal of 1215053017 is 7103505121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1184461056 + 30591961 = 34416^2 + 5531^2 .

It is a cyclic number.

It is not a de Polignac number, because 1215053017 - 2²⁷ = 1080835289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1215052982 and 1215053000.

It is not a weakly prime, because it can be changed into another prime (1215053011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607526508 + 607526509.

It is an arithmetic number, because the mean of its divisors is an integer number (607526509).

Almost surely, 2^1215053017 is an apocalyptic number.

It is an amenable number.

1215053017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215053017 is an equidigital number, since it uses as much as digits as its factorization.

1215053017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 1215053017 is about 34857.6106037118. The cubic root of 1215053017 is about 1067.0835117643.

Adding to 1215053017 its reverse (7103505121), we get a palindrome (8318558138).

The spelling of 1215053017 in words is "one billion, two hundred fifteen million, fifty-three thousand, seventeen".