1015071217 has 2 divisors, whose sum is σ = 1015071218. Its totient is φ = 1015071216.

The previous prime is 1015071199. The next prime is 1015071221. The reversal of 1015071217 is 7121705101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 790790641 + 224280576 = 28121^2 + 14976^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015071217 - 2²³ = 1006682609 is a prime.

It is a super-2 number, since 2×1015071217² = 2060739151163722178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1015071191 and 1015071200.

It is not a weakly prime, because it can be changed into another prime (1015071227) 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, 507535608 + 507535609.

It is an arithmetic number, because the mean of its divisors is an integer number (507535609).

Almost surely, 2^1015071217 is an apocalyptic number.

It is an amenable number.

1015071217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015071217 is an equidigital number, since it uses as much as digits as its factorization.

1015071217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 490, while the sum is 25.

The square root of 1015071217 is about 31860.1823127238. The cubic root of 1015071217 is about 1004.9987102613.

Adding to 1015071217 its reverse (7121705101), we get a palindrome (8136776318).

The spelling of 1015071217 in words is "one billion, fifteen million, seventy-one thousand, two hundred seventeen".