313304081 has 4 divisors (see below), whose sum is σ = 324107700. Its totient is φ = 302500464.

The previous prime is 313304077. The next prime is 313304087. The reversal of 313304081 is 180403313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59985025 + 253319056 = 7745^2 + 15916^2 .

It is a cyclic number.

It is not a de Polignac number, because 313304081 - 2² = 313304077 is a prime.

It is a super-2 number, since 2×313304081² = 196318894342509122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313304087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5401766 + ... + 5401823.

It is an arithmetic number, because the mean of its divisors is an integer number (81026925).

Almost surely, 2^313304081 is an apocalyptic number.

It is an amenable number.

313304081 is a deficient number, since it is larger than the sum of its proper divisors (10803619).

313304081 is a wasteful number, since it uses less digits than its factorization.

313304081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10803618.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 313304081 is about 17700.3977638922. The cubic root of 313304081 is about 679.1859354305.

Adding to 313304081 its reverse (180403313), we get a palindrome (493707394).

The spelling of 313304081 in words is "three hundred thirteen million, three hundred four thousand, eighty-one".