316500133 has 4 divisors (see below), whose sum is σ = 316549728. Its totient is φ = 316450540.

The previous prime is 316500083. The next prime is 316500137. The reversal of 316500133 is 331005613.

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-316500133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316500137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13513 + ... + 28558.

It is an arithmetic number, because the mean of its divisors is an integer number (79137432).

Almost surely, 2^316500133 is an apocalyptic number.

It is an amenable number.

316500133 is a deficient number, since it is larger than the sum of its proper divisors (49595).

316500133 is an equidigital number, since it uses as much as digits as its factorization.

316500133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49594.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 316500133 is about 17790.4506126180. The cubic root of 316500133 is about 681.4876118873.

Adding to 316500133 its reverse (331005613), we get a palindrome (647505746).

The spelling of 316500133 in words is "three hundred sixteen million, five hundred thousand, one hundred thirty-three".