819140045 has 8 divisors (see below), whose sum is σ = 983548896. Its totient is φ = 654924816.

The previous prime is 819140039. The next prime is 819140137. The reversal of 819140045 is 540041918.

819140045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 819140045 - 2⁴ = 819140029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 819139993 and 819140020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38927 + ... + 56156.

It is an arithmetic number, because the mean of its divisors is an integer number (122943612).

Almost surely, 2^819140045 is an apocalyptic number.

It is an amenable number.

819140045 is a deficient number, since it is larger than the sum of its proper divisors (164408851).

819140045 is a wasteful number, since it uses less digits than its factorization.

819140045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96811.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 819140045 is about 28620.6227220863. The cubic root of 819140045 is about 935.6628489156.

The spelling of 819140045 in words is "eight hundred nineteen million, one hundred forty thousand, forty-five".