1040543129 has 2 divisors, whose sum is σ = 1040543130. Its totient is φ = 1040543128.

The previous prime is 1040543083. The next prime is 1040543159. The reversal of 1040543129 is 9213450401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 790903129 + 249640000 = 28123^2 + 15800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040543129 - 2⁸ = 1040542873 is a prime.

It is a super-2 number, since 2×1040543129² = 2165460006618221282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1040543159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520271564 + 520271565.

It is an arithmetic number, because the mean of its divisors is an integer number (520271565).

Almost surely, 2^1040543129 is an apocalyptic number.

It is an amenable number.

1040543129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040543129 is an equidigital number, since it uses as much as digits as its factorization.

1040543129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1040543129 is about 32257.4507517256. The cubic root of 1040543129 is about 1013.3357437207.

The spelling of 1040543129 in words is "one billion, forty million, five hundred forty-three thousand, one hundred twenty-nine".