1040143433449 has 2 divisors, whose sum is σ = 1040143433450. Its totient is φ = 1040143433448.

The previous prime is 1040143433393. The next prime is 1040143433477. The reversal of 1040143433449 is 9443343410401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 991532003049 + 48611430400 = 995757^2 + 220480^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040143433449 - 2¹⁷ = 1040143302377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040143433479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520071716724 + 520071716725.

It is an arithmetic number, because the mean of its divisors is an integer number (520071716725).

Almost surely, 2^{1040143433449} is an apocalyptic number.

It is an amenable number.

1040143433449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040143433449 is an equidigital number, since it uses as much as digits as its factorization.

1040143433449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 1040143433449 in words is "one trillion, forty billion, one hundred forty-three million, four hundred thirty-three thousand, four hundred forty-nine".