305316213 has 8 divisors (see below), whose sum is σ = 408914688. Its totient is φ = 202630944.

The previous prime is 305316197. The next prime is 305316223. The reversal of 305316213 is 312613503.

It is a happy number.

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

It is not a de Polignac number, because 305316213 - 2⁴ = 305316197 is a prime.

It is a super-2 number, since 2×305316213² = 186435979841322738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305316223) by changing a digit.

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, 227520 + ... + 228857.

It is an arithmetic number, because the mean of its divisors is an integer number (51114336).

Almost surely, 2^305316213 is an apocalyptic number.

It is an amenable number.

305316213 is a deficient number, since it is larger than the sum of its proper divisors (103598475).

305316213 is a wasteful number, since it uses less digits than its factorization.

305316213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456603.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 305316213 is about 17473.3000031477. The cubic root of 305316213 is about 673.3640955513.

Adding to 305316213 its reverse (312613503), we get a palindrome (617929716).

The spelling of 305316213 in words is "three hundred five million, three hundred sixteen thousand, two hundred thirteen".