1052270305 has 4 divisors (see below), whose sum is σ = 1262724372. Its totient is φ = 841816240.

The previous prime is 1052270287. The next prime is 1052270327. The reversal of 1052270305 is 5030722501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 409495696 + 642774609 = 20236^2 + 25353^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1052270305 is a prime.

It is a super-2 number, since 2×1052270305² = 2214545589569586050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1052270305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105227026 + ... + 105227035.

It is an arithmetic number, because the mean of its divisors is an integer number (315681093).

Almost surely, 2^1052270305 is an apocalyptic number.

It is an amenable number.

1052270305 is a deficient number, since it is larger than the sum of its proper divisors (210454067).

1052270305 is an equidigital number, since it uses as much as digits as its factorization.

1052270305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210454066.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 1052270305 is about 32438.7161429055. The cubic root of 1052270305 is about 1017.1283785977.

Adding to 1052270305 its reverse (5030722501), we get a palindrome (6082992806).

The spelling of 1052270305 in words is "one billion, fifty-two million, two hundred seventy thousand, three hundred five".