1115004217 has 2 divisors, whose sum is σ = 1115004218. Its totient is φ = 1115004216.

The previous prime is 1115004199. The next prime is 1115004223. The reversal of 1115004217 is 7124005111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 882624681 + 232379536 = 29709^2 + 15244^2 .

It is an emirp because it is prime and its reverse (7124005111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1115004217 - 2¹⁵ = 1114971449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115004257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557502108 + 557502109.

It is an arithmetic number, because the mean of its divisors is an integer number (557502109).

Almost surely, 2^1115004217 is an apocalyptic number.

It is an amenable number.

1115004217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115004217 is an equidigital number, since it uses as much as digits as its factorization.

1115004217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 1115004217 is about 33391.6788586618. The cubic root of 1115004217 is about 1036.9524370898.

Adding to 1115004217 its reverse (7124005111), we get a palindrome (8239009328).

The spelling of 1115004217 in words is "one billion, one hundred fifteen million, four thousand, two hundred seventeen".