819137054 has 8 divisors (see below), whose sum is σ = 1229512728. Its totient is φ = 409299480.

The previous prime is 819137047. The next prime is 819137089. The reversal of 819137054 is 450731918.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 819136999 and 819137017.

It is a congruent number.

It is an unprimeable number.

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, 130697 + ... + 136820.

It is an arithmetic number, because the mean of its divisors is an integer number (153689091).

Almost surely, 2^819137054 is an apocalyptic number.

819137054 is a deficient number, since it is larger than the sum of its proper divisors (410375674).

819137054 is a wasteful number, since it uses less digits than its factorization.

819137054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269050.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 819137054 is about 28620.5704695067. The cubic root of 819137054 is about 935.6617100908.

The spelling of 819137054 in words is "eight hundred nineteen million, one hundred thirty-seven thousand, fifty-four".