3120457 has 2 divisors, whose sum is σ = 3120458. Its totient is φ = 3120456.

The previous prime is 3120443. The next prime is 3120461. The reversal of 3120457 is 7540213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1901641 + 1218816 = 1379^2 + 1104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3120457 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3120407) 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 as a sum of consecutive naturals, namely, 1560228 + 1560229.

It is an arithmetic number, because the mean of its divisors is an integer number (1560229).

Almost surely, 2^3120457 is an apocalyptic number.

It is an amenable number.

3120457 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120457 is an equidigital number, since it uses as much as digits as its factorization.

3120457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 3120457 is about 1766.4815311800. The cubic root of 3120457 is about 146.1300055509.

The spelling of 3120457 in words is "three million, one hundred twenty thousand, four hundred fifty-seven".