845919051 has 4 divisors (see below), whose sum is σ = 1127892072. Its totient is φ = 563946032.

The previous prime is 845919043. The next prime is 845919073. The reversal of 845919051 is 150919548.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 845919051 - 2³ = 845919043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 845918994 and 845919012.

It is not an unprimeable number, because it can be changed into a prime (845919251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140986506 + ... + 140986511.

It is an arithmetic number, because the mean of its divisors is an integer number (281973018).

Almost surely, 2^845919051 is an apocalyptic number.

845919051 is a deficient number, since it is larger than the sum of its proper divisors (281973021).

845919051 is a wasteful number, since it uses less digits than its factorization.

845919051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281973020.

The product of its (nonzero) digits is 64800, while the sum is 42.

The square root of 845919051 is about 29084.6875692348. The cubic root of 845919051 is about 945.7498228471.

The spelling of 845919051 in words is "eight hundred forty-five million, nine hundred nineteen thousand, fifty-one".