5121247 has 2 divisors, whose sum is σ = 5121248. Its totient is φ = 5121246.

The previous prime is 5121227. The next prime is 5121251. The reversal of 5121247 is 7421215.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5121247 - 2⁷ = 5121119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5121227) 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, 2560623 + 2560624.

It is an arithmetic number, because the mean of its divisors is an integer number (2560624).

Almost surely, 2^5121247 is an apocalyptic number.

5121247 is a deficient number, since it is larger than the sum of its proper divisors (1).

5121247 is an equidigital number, since it uses as much as digits as its factorization.

5121247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 560, while the sum is 22.

The square root of 5121247 is about 2263.0172336949. The cubic root of 5121247 is about 172.3687666712.

Subtracting 5121247 from its reverse (7421215), we obtain a cube (2299968 = 132³).

The spelling of 5121247 in words is "five million, one hundred twenty-one thousand, two hundred forty-seven".