1052213165 has 4 divisors (see below), whose sum is σ = 1262655804. Its totient is φ = 841770528.

The previous prime is 1052213153. The next prime is 1052213213. The reversal of 1052213165 is 5613122501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5613122501 = 7 ⋅801874643.

It can be written as a sum of positive squares in 2 ways, for example, as 250304041 + 801909124 = 15821^2 + 28318^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052213165 - 2²⁰ = 1051164589 is a prime.

It is a super-2 number, since 2×1052213165² = 2214305089198634450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105221312 + ... + 105221321.

It is an arithmetic number, because the mean of its divisors is an integer number (315663951).

Almost surely, 2^1052213165 is an apocalyptic number.

It is an amenable number.

1052213165 is a deficient number, since it is larger than the sum of its proper divisors (210442639).

1052213165 is an equidigital number, since it uses as much as digits as its factorization.

1052213165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210442638.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1052213165 is about 32437.8353932564. The cubic root of 1052213165 is about 1017.1099676858.

Adding to 1052213165 its reverse (5613122501), we get a palindrome (6665335666).

The spelling of 1052213165 in words is "one billion, fifty-two million, two hundred thirteen thousand, one hundred sixty-five".