1040143439 has 2 divisors, whose sum is σ = 1040143440. Its totient is φ = 1040143438.

The previous prime is 1040143427. The next prime is 1040143463. The reversal of 1040143439 is 9343410401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1040143439 - 2⁸ = 1040143183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040143409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520071719 + 520071720.

It is an arithmetic number, because the mean of its divisors is an integer number (520071720).

Almost surely, 2^1040143439 is an apocalyptic number.

1040143439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040143439 is an equidigital number, since it uses as much as digits as its factorization.

1040143439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1040143439 is about 32251.2548438041. The cubic root of 1040143439 is about 1013.2059807083.

The spelling of 1040143439 in words is "one billion, forty million, one hundred forty-three thousand, four hundred thirty-nine".