30807313 has 4 divisors (see below), whose sum is σ = 30856768. Its totient is φ = 30757860.

The previous prime is 30807299. The next prime is 30807317. The reversal of 30807313 is 31370803.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31370803 = 4007 ⋅7829.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30807313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30807317) 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, 23781 + ... + 25042.

It is an arithmetic number, because the mean of its divisors is an integer number (7714192).

Almost surely, 2^30807313 is an apocalyptic number.

It is an amenable number.

30807313 is a deficient number, since it is larger than the sum of its proper divisors (49455).

30807313 is an equidigital number, since it uses as much as digits as its factorization.

30807313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49454.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 30807313 is about 5550.4335866669. The cubic root of 30807313 is about 313.4858483658.

The spelling of 30807313 in words is "thirty million, eight hundred seven thousand, three hundred thirteen".