1052041421 has 2 divisors, whose sum is σ = 1052041422. Its totient is φ = 1052041420.

The previous prime is 1052041409. The next prime is 1052041453. The reversal of 1052041421 is 1241402501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 809118025 + 242923396 = 28445^2 + 15586^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052041421 - 2⁶ = 1052041357 is a prime.

It is a super-2 number, since 2×1052041421² = 2213582302999398482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1052041393 and 1052041402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1052041121) 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 as a sum of consecutive naturals, namely, 526020710 + 526020711.

It is an arithmetic number, because the mean of its divisors is an integer number (526020711).

Almost surely, 2^1052041421 is an apocalyptic number.

It is an amenable number.

1052041421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052041421 is an equidigital number, since it uses as much as digits as its factorization.

1052041421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1052041421 is about 32435.1880062379. The cubic root of 1052041421 is about 1017.0546265423.

Adding to 1052041421 its reverse (1241402501), we get a palindrome (2293443922).

The spelling of 1052041421 in words is "one billion, fifty-two million, forty-one thousand, four hundred twenty-one".