945742849 has 4 divisors (see below), whose sum is σ = 945884464. Its totient is φ = 945601236.

The previous prime is 945742769. The next prime is 945742901. The reversal of 945742849 is 948247549.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 945742849 - 2¹¹ = 945740801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 945742796 and 945742805.

It is not an unprimeable number, because it can be changed into a prime (945742949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60267 + ... + 74320.

It is an arithmetic number, because the mean of its divisors is an integer number (236471116).

Almost surely, 2^945742849 is an apocalyptic number.

It is an amenable number.

945742849 is a deficient number, since it is larger than the sum of its proper divisors (141615).

945742849 is a wasteful number, since it uses less digits than its factorization.

945742849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141614.

The product of its digits is 2903040, while the sum is 52.

The square root of 945742849 is about 30752.9323642478. The cubic root of 945742849 is about 981.5769588673.

The spelling of 945742849 in words is "nine hundred forty-five million, seven hundred forty-two thousand, eight hundred forty-nine".