3148244821 has 2 divisors, whose sum is σ = 3148244822. Its totient is φ = 3148244820.

The previous prime is 3148244809. The next prime is 3148244833. The reversal of 3148244821 is 1284428413.

It is a balanced prime because it is at equal distance from previous prime (3148244809) and next prime (3148244833).

It can be written as a sum of positive squares in only one way, i.e., 2551664196 + 596580625 = 50514^2 + 24425^2 .

It is a cyclic number.

It is not a de Polignac number, because 3148244821 - 2¹³ = 3148236629 is a prime.

It is a super-2 number, since 2×3148244821² = 19822890905906644082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3148244861) 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, 1574122410 + 1574122411.

It is an arithmetic number, because the mean of its divisors is an integer number (1574122411).

Almost surely, 2^3148244821 is an apocalyptic number.

It is an amenable number.

3148244821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3148244821 is an equidigital number, since it uses as much as digits as its factorization.

3148244821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49152, while the sum is 37.

The square root of 3148244821 is about 56109.2222455453. Note that the first 4 decimals coincide. The cubic root of 3148244821 is about 1465.6248924740.

The spelling of 3148244821 in words is "three billion, one hundred forty-eight million, two hundred forty-four thousand, eight hundred twenty-one".