1341443921 has 2 divisors, whose sum is σ = 1341443922. Its totient is φ = 1341443920.

The previous prime is 1341443911. The next prime is 1341443933. The reversal of 1341443921 is 1293441431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1158653521 + 182790400 = 34039^2 + 13520^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341443921 - 2¹⁴ = 1341427537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1341443911) 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, 670721960 + 670721961.

It is an arithmetic number, because the mean of its divisors is an integer number (670721961).

Almost surely, 2^1341443921 is an apocalyptic number.

It is an amenable number.

1341443921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1341443921 is an equidigital number, since it uses as much as digits as its factorization.

1341443921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 1341443921 is about 36625.7275832167. The cubic root of 1341443921 is about 1102.8696206021.

The spelling of 1341443921 in words is "one billion, three hundred forty-one million, four hundred forty-three thousand, nine hundred twenty-one".