3573541021 has 2 divisors, whose sum is σ = 3573541022. Its totient is φ = 3573541020.

The previous prime is 3573540961. The next prime is 3573541031. The reversal of 3573541021 is 1201453753.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3271268025 + 302272996 = 57195^2 + 17386^2 .

It is an emirp because it is prime and its reverse (1201453753) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3573541021 - 2¹¹ = 3573538973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3573541031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1786770510 + 1786770511.

It is an arithmetic number, because the mean of its divisors is an integer number (1786770511).

Almost surely, 2^3573541021 is an apocalyptic number.

It is an amenable number.

3573541021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3573541021 is an equidigital number, since it uses as much as digits as its factorization.

3573541021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 3573541021 is about 59779.1018751537. The cubic root of 3573541021 is about 1528.8548568773.

Adding to 3573541021 its reverse (1201453753), we get a palindrome (4774994774).

The spelling of 3573541021 in words is "three billion, five hundred seventy-three million, five hundred forty-one thousand, twenty-one".