1945930043 has 2 divisors, whose sum is σ = 1945930044. Its totient is φ = 1945930042.

The previous prime is 1945930013. The next prime is 1945930061. The reversal of 1945930043 is 3400395491.

It is a strong prime.

It is an emirp because it is prime and its reverse (3400395491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1945930043 - 2²⁸ = 1677494587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1945929979 and 1945930006.

It is not a weakly prime, because it can be changed into another prime (1945930003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972965021 + 972965022.

It is an arithmetic number, because the mean of its divisors is an integer number (972965022).

Almost surely, 2^1945930043 is an apocalyptic number.

1945930043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1945930043 is an equidigital number, since it uses as much as digits as its factorization.

1945930043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 1945930043 is about 44112.6970723850. The cubic root of 1945930043 is about 1248.4631871794.

The spelling of 1945930043 in words is "one billion, nine hundred forty-five million, nine hundred thirty thousand, forty-three".