3451582021 has 2 divisors, whose sum is σ = 3451582022. Its totient is φ = 3451582020.

The previous prime is 3451581953. The next prime is 3451582027. The reversal of 3451582021 is 1202851543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3001505796 + 450076225 = 54786^2 + 21215^2 .

It is an emirp because it is prime and its reverse (1202851543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3451582021 - 2¹⁷ = 3451450949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3451582027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1725791010 + 1725791011.

It is an arithmetic number, because the mean of its divisors is an integer number (1725791011).

Almost surely, 2^3451582021 is an apocalyptic number.

It is an amenable number.

3451582021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3451582021 is an equidigital number, since it uses as much as digits as its factorization.

3451582021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 3451582021 is about 58750.1661359353. The cubic root of 3451582021 is about 1511.2607369199.

The spelling of 3451582021 in words is "three billion, four hundred fifty-one million, five hundred eighty-two thousand, twenty-one".