3130247 has 4 divisors (see below), whose sum is σ = 3196896. Its totient is φ = 3063600.

The previous prime is 3130243. The next prime is 3130249. The reversal of 3130247 is 7420313.

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 3130247 - 2² = 3130243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130241) 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, 33254 + ... + 33347.

It is an arithmetic number, because the mean of its divisors is an integer number (799224).

Almost surely, 2^3130247 is an apocalyptic number.

3130247 is a deficient number, since it is larger than the sum of its proper divisors (66649).

3130247 is an equidigital number, since it uses as much as digits as its factorization.

3130247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66648.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 3130247 is about 1769.2504062455. The cubic root of 3130247 is about 146.2826668695.

The spelling of 3130247 in words is "three million, one hundred thirty thousand, two hundred forty-seven".