1517216263 has 2 divisors, whose sum is σ = 1517216264. Its totient is φ = 1517216262.

The previous prime is 1517216203. The next prime is 1517216269. The reversal of 1517216263 is 3626127151.

It is a strong prime.

It is an emirp because it is prime and its reverse (3626127151) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1517216263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1517216269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758608131 + 758608132.

It is an arithmetic number, because the mean of its divisors is an integer number (758608132).

Almost surely, 2^1517216263 is an apocalyptic number.

1517216263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1517216263 is an equidigital number, since it uses as much as digits as its factorization.

1517216263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 1517216263 is about 38951.4603448959. The cubic root of 1517216263 is about 1149.0770825853.

The spelling of 1517216263 in words is "one billion, five hundred seventeen million, two hundred sixteen thousand, two hundred sixty-three".