307313 has 4 divisors (see below), whose sum is σ = 317940. Its totient is φ = 296688.

The previous prime is 307301. The next prime is 307337. The reversal of 307313 is 313703.

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 69169 + 238144 = 263^2 + 488^2 .

It is a cyclic number.

It is not a de Polignac number, because 307313 - 2¹² = 303217 is a prime.

It is a super-3 number, since 3×307313³ = 87069099213339891, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 307291 and 307300.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 307313.

It is not an unprimeable number, because it can be changed into a prime (303313) 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, 5270 + ... + 5327.

It is an arithmetic number, because the mean of its divisors is an integer number (79485).

2³⁰⁷³¹³ is an apocalyptic number.

It is an amenable number.

307313 is a deficient number, since it is larger than the sum of its proper divisors (10627).

307313 is a wasteful number, since it uses less digits than its factorization.

307313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10626.

The product of its (nonzero) digits is 189, while the sum is 17.

The square root of 307313 is about 554.3581874564. The cubic root of 307313 is about 67.4828854644.

The spelling of 307313 in words is "three hundred seven thousand, three hundred thirteen".