839145955 has 8 divisors (see below), whose sum is σ = 1007151552. Its totient is φ = 671199168.

The previous prime is 839145941. The next prime is 839145971. The reversal of 839145955 is 559541938.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-839145955 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 839145899 and 839145908.

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 7 ways as a sum of consecutive naturals, for example, 27942 + ... + 49588.

It is an arithmetic number, because the mean of its divisors is an integer number (125893944).

Almost surely, 2^839145955 is an apocalyptic number.

839145955 is a deficient number, since it is larger than the sum of its proper divisors (168005597).

839145955 is a wasteful number, since it uses less digits than its factorization.

839145955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29405.

The product of its digits is 972000, while the sum is 49.

The square root of 839145955 is about 28968.0160694515. The cubic root of 839145955 is about 943.2189159661.

The spelling of 839145955 in words is "eight hundred thirty-nine million, one hundred forty-five thousand, nine hundred fifty-five".