1215005353 has 2 divisors, whose sum is σ = 1215005354. Its totient is φ = 1215005352.

The previous prime is 1215005263. The next prime is 1215005359. The reversal of 1215005353 is 3535005121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1095146649 + 119858704 = 33093^2 + 10948^2 .

It is an emirp because it is prime and its reverse (3535005121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1215005353 - 2²⁹ = 678134441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1215005359) 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, 607502676 + 607502677.

It is an arithmetic number, because the mean of its divisors is an integer number (607502677).

Almost surely, 2^1215005353 is an apocalyptic number.

It is an amenable number.

1215005353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215005353 is an equidigital number, since it uses as much as digits as its factorization.

1215005353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 1215005353 is about 34856.9269012631. The cubic root of 1215005353 is about 1067.0695584270.

The spelling of 1215005353 in words is "one billion, two hundred fifteen million, five thousand, three hundred fifty-three".