803905144135 has 4 divisors (see below), whose sum is σ = 964686172968. Its totient is φ = 643124115304.

The previous prime is 803905144129. The next prime is 803905144153. The reversal of 803905144135 is 531441509308.

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 803905144135 - 2¹¹ = 803905142087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 803905144091 and 803905144100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80390514409 + ... + 80390514418.

It is an arithmetic number, because the mean of its divisors is an integer number (241171543242).

Almost surely, 2^803905144135 is an apocalyptic number.

803905144135 is a deficient number, since it is larger than the sum of its proper divisors (160781028833).

803905144135 is a wasteful number, since it uses less digits than its factorization.

803905144135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160781028832.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 803905144135 in words is "eight hundred three billion, nine hundred five million, one hundred forty-four thousand, one hundred thirty-five".