1421348449 has 2 divisors, whose sum is σ = 1421348450. Its totient is φ = 1421348448.

The previous prime is 1421348441. The next prime is 1421348473. The reversal of 1421348449 is 9448431241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1349827600 + 71520849 = 36740^2 + 8457^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421348449 - 2³ = 1421348441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421348441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710674224 + 710674225.

It is an arithmetic number, because the mean of its divisors is an integer number (710674225).

Almost surely, 2^1421348449 is an apocalyptic number.

It is an amenable number.

1421348449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421348449 is an equidigital number, since it uses as much as digits as its factorization.

1421348449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 40.

The square root of 1421348449 is about 37700.7751777069. The cubic root of 1421348449 is about 1124.3465371148.

The spelling of 1421348449 in words is "one billion, four hundred twenty-one million, three hundred forty-eight thousand, four hundred forty-nine".