945811943 has 2 divisors, whose sum is σ = 945811944. Its totient is φ = 945811942.

The previous prime is 945811927. The next prime is 945811967. The reversal of 945811943 is 349118549.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 945811943 - 2⁴ = 945811927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 945811894 and 945811903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (945811913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472905971 + 472905972.

It is an arithmetic number, because the mean of its divisors is an integer number (472905972).

Almost surely, 2^945811943 is an apocalyptic number.

945811943 is a deficient number, since it is larger than the sum of its proper divisors (1).

945811943 is an equidigital number, since it uses as much as digits as its factorization.

945811943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 44.

The square root of 945811943 is about 30754.0557162791. The cubic root of 945811943 is about 981.6008622737.

The spelling of 945811943 in words is "nine hundred forty-five million, eight hundred eleven thousand, nine hundred forty-three".