1942403543 has 2 divisors, whose sum is σ = 1942403544. Its totient is φ = 1942403542.

The previous prime is 1942403509. The next prime is 1942403569. The reversal of 1942403543 is 3453042491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1942403543 - 2⁶ = 1942403479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1942403503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971201771 + 971201772.

It is an arithmetic number, because the mean of its divisors is an integer number (971201772).

Almost surely, 2^1942403543 is an apocalyptic number.

1942403543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1942403543 is an equidigital number, since it uses as much as digits as its factorization.

1942403543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 1942403543 is about 44072.7074616480. The cubic root of 1942403543 is about 1247.7085578410.

The spelling of 1942403543 in words is "one billion, nine hundred forty-two million, four hundred three thousand, five hundred forty-three".