3343145821 has 2 divisors, whose sum is σ = 3343145822. Its totient is φ = 3343145820.

The previous prime is 3343145789. The next prime is 3343145843. The reversal of 3343145821 is 1285413433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3226808025 + 116337796 = 56805^2 + 10786^2 .

It is a cyclic number.

It is not a de Polignac number, because 3343145821 - 2⁵ = 3343145789 is a prime.

It is a super-2 number, since 2×3343145821² = 22353247960939528082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3344145821) 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, 1671572910 + 1671572911.

It is an arithmetic number, because the mean of its divisors is an integer number (1671572911).

Almost surely, 2^3343145821 is an apocalyptic number.

It is an amenable number.

3343145821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3343145821 is an equidigital number, since it uses as much as digits as its factorization.

3343145821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 3343145821 is about 57819.9431078931. The cubic root of 3343145821 is about 1495.2659371879.

The spelling of 3343145821 in words is "three billion, three hundred forty-three million, one hundred forty-five thousand, eight hundred twenty-one".