3130305 has 8 divisors (see below), whose sum is σ = 5008512. Its totient is φ = 1669488.

The previous prime is 3130297. The next prime is 3130327. The reversal of 3130305 is 5030313.

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

It is not a de Polignac number, because 3130305 - 2³ = 3130297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 208687 = 3130305 / (3 + 1 + 3 + 0 + 3 + 0 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104329 + ... + 104358.

It is an arithmetic number, because the mean of its divisors is an integer number (626064).

Almost surely, 2^3130305 is an apocalyptic number.

It is an amenable number.

3130305 is a deficient number, since it is larger than the sum of its proper divisors (1878207).

3130305 is a wasteful number, since it uses less digits than its factorization.

3130305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208695.

The product of its (nonzero) digits is 135, while the sum is 15.

The square root of 3130305 is about 1769.2667972920. The cubic root of 3130305 is about 146.2835703490.

Adding to 3130305 its reverse (5030313), we get a palindrome (8160618).

The spelling of 3130305 in words is "three million, one hundred thirty thousand, three hundred five".