1043539121 has 2 divisors, whose sum is σ = 1043539122. Its totient is φ = 1043539120.

The previous prime is 1043539097. The next prime is 1043539127. The reversal of 1043539121 is 1219353401.

1043539121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 954501025 + 89038096 = 30895^2 + 9436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043539121 - 2¹⁴ = 1043522737 is a prime.

It is not a weakly prime, because it can be changed into another prime (1043539127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521769560 + 521769561.

It is an arithmetic number, because the mean of its divisors is an integer number (521769561).

Almost surely, 2^1043539121 is an apocalyptic number.

It is an amenable number.

1043539121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043539121 is an equidigital number, since it uses as much as digits as its factorization.

1043539121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1043539121 is about 32303.8561320471. The cubic root of 1043539121 is about 1014.3073634425.

The spelling of 1043539121 in words is "one billion, forty-three million, five hundred thirty-nine thousand, one hundred twenty-one".