310045013 has 8 divisors (see below), whose sum is σ = 312587832. Its totient is φ = 307509696.

The previous prime is 310045009. The next prime is 310045027. The reversal of 310045013 is 310540013.

It can be written as a sum of positive squares in 4 ways, for example, as 223592209 + 86452804 = 14953^2 + 9298^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 310045013 - 2² = 310045009 is a prime.

It is a super-2 number, since 2×310045013² = 192255820172340338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 310044982 and 310045000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310045033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104831 + ... + 107747.

It is an arithmetic number, because the mean of its divisors is an integer number (39073479).

Almost surely, 2^310045013 is an apocalyptic number.

It is an amenable number.

310045013 is a deficient number, since it is larger than the sum of its proper divisors (2542819).

310045013 is a wasteful number, since it uses less digits than its factorization.

310045013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 310045013 is about 17608.0950985619. The cubic root of 310045013 is about 676.8227009864.

Adding to 310045013 its reverse (310540013), we get a palindrome (620585026).

The spelling of 310045013 in words is "three hundred ten million, forty-five thousand, thirteen".