485128311 has 8 divisors (see below), whose sum is σ = 680881920. Its totient is φ = 306396792.

The previous prime is 485128291. The next prime is 485128333. The reversal of 485128311 is 113821584.

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

It is not a de Polignac number, because 485128311 - 2⁶ = 485128247 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485128381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4255455 + ... + 4255568.

It is an arithmetic number, because the mean of its divisors is an integer number (85110240).

Almost surely, 2^485128311 is an apocalyptic number.

485128311 is a deficient number, since it is larger than the sum of its proper divisors (195753609).

485128311 is a wasteful number, since it uses less digits than its factorization.

485128311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8511045.

The product of its digits is 7680, while the sum is 33.

The square root of 485128311 is about 22025.6285040859. The cubic root of 485128311 is about 785.7520810989.

Adding to 485128311 its reverse (113821584), we get a palindrome (598949895).

The spelling of 485128311 in words is "four hundred eighty-five million, one hundred twenty-eight thousand, three hundred eleven".