1052821243 has 2 divisors, whose sum is σ = 1052821244. Its totient is φ = 1052821242.

The previous prime is 1052821213. The next prime is 1052821261. The reversal of 1052821243 is 3421282501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1052821243 - 2²⁵ = 1019266811 is a prime.

It is a super-2 number, since 2×1052821243² = 2216865139424130098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1052821213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526410621 + 526410622.

It is an arithmetic number, because the mean of its divisors is an integer number (526410622).

Almost surely, 2^1052821243 is an apocalyptic number.

1052821243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052821243 is an equidigital number, since it uses as much as digits as its factorization.

1052821243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1052821243 is about 32447.2070138556. The cubic root of 1052821243 is about 1017.3058605310.

The spelling of 1052821243 in words is "one billion, fifty-two million, eight hundred twenty-one thousand, two hundred forty-three".