855146273 has 4 divisors (see below), whose sum is σ = 863448768. Its totient is φ = 846843780.

The previous prime is 855146267. The next prime is 855146293. The reversal of 855146273 is 372641558.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-855146273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 855146273.

It is not an unprimeable number, because it can be changed into a prime (855146293) 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, 4151093 + ... + 4151298.

It is an arithmetic number, because the mean of its divisors is an integer number (215862192).

Almost surely, 2^855146273 is an apocalyptic number.

It is an amenable number.

855146273 is a deficient number, since it is larger than the sum of its proper divisors (8302495).

855146273 is a wasteful number, since it uses less digits than its factorization.

855146273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8302494.

The product of its digits is 201600, while the sum is 41.

The square root of 855146273 is about 29242.8841429843. The cubic root of 855146273 is about 949.1761178323.

The spelling of 855146273 in words is "eight hundred fifty-five million, one hundred forty-six thousand, two hundred seventy-three".