1052444213 has 4 divisors (see below), whose sum is σ = 1052560140. Its totient is φ = 1052328288.

The previous prime is 1052444153. The next prime is 1052444273. The reversal of 1052444213 is 3124442501.

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

It is an interprime number because it is at equal distance from previous prime (1052444153) and next prime (1052444273).

It can be written as a sum of positive squares in 2 ways, for example, as 293882449 + 758561764 = 17143^2 + 27542^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052444213 - 2¹² = 1052440117 is a prime.

It is a super-2 number, since 2×1052444213² = 2215277642954378738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052444273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43070 + ... + 62927.

It is an arithmetic number, because the mean of its divisors is an integer number (263140035).

Almost surely, 2^1052444213 is an apocalyptic number.

It is an amenable number.

1052444213 is a deficient number, since it is larger than the sum of its proper divisors (115927).

1052444213 is an equidigital number, since it uses as much as digits as its factorization.

1052444213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115926.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1052444213 is about 32441.3965944748. The cubic root of 1052444213 is about 1017.1844088836.

Adding to 1052444213 its reverse (3124442501), we get a palindrome (4176886714).

The spelling of 1052444213 in words is "one billion, fifty-two million, four hundred forty-four thousand, two hundred thirteen".