3130723 has 4 divisors (see below), whose sum is σ = 3143448. Its totient is φ = 3118000.

The previous prime is 3130711. The next prime is 3130733. The reversal of 3130723 is 3270313.

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

It is a cyclic number.

It is not a de Polignac number, because 3130723 - 2¹⁷ = 2999651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3130723.

It is not an unprimeable number, because it can be changed into a prime (3130733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5986 + ... + 6487.

It is an arithmetic number, because the mean of its divisors is an integer number (785862).

Almost surely, 2^3130723 is an apocalyptic number.

3130723 is a deficient number, since it is larger than the sum of its proper divisors (12725).

3130723 is a wasteful number, since it uses less digits than its factorization.

3130723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12724.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 3130723 is about 1769.3849213780. The cubic root of 3130723 is about 146.2900813025.

The spelling of 3130723 in words is "three million, one hundred thirty thousand, seven hundred twenty-three".