1050318217 has 4 divisors (see below), whose sum is σ = 1131111940. Its totient is φ = 969524496.

The previous prime is 1050318211. The next prime is 1050318251. The reversal of 1050318217 is 7128130501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7128130501 = 827 ⋅8619263.

It can be written as a sum of positive squares in 2 ways, for example, as 679332096 + 370986121 = 26064^2 + 19261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1050318217 - 2³ = 1050318209 is a prime.

It is a super-2 number, since 2×1050318217² = 2206336713924118178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1050318211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40396842 + ... + 40396867.

It is an arithmetic number, because the mean of its divisors is an integer number (282777985).

Almost surely, 2^1050318217 is an apocalyptic number.

It is an amenable number.

1050318217 is a deficient number, since it is larger than the sum of its proper divisors (80793723).

1050318217 is an equidigital number, since it uses as much as digits as its factorization.

1050318217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80793722.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 1050318217 is about 32408.6133149816. The cubic root of 1050318217 is about 1016.4990240946.

Adding to 1050318217 its reverse (7128130501), we get a palindrome (8178448718).

The spelling of 1050318217 in words is "one billion, fifty million, three hundred eighteen thousand, two hundred seventeen".