5121251 has 2 divisors, whose sum is σ = 5121252. Its totient is φ = 5121250.

The previous prime is 5121247. The next prime is 5121271. The reversal of 5121251 is 1521215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5121251 - 2² = 5121247 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5121211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560625 + 2560626.

It is an arithmetic number, because the mean of its divisors is an integer number (2560626).

Almost surely, 2^5121251 is an apocalyptic number.

5121251 is a deficient number, since it is larger than the sum of its proper divisors (1).

5121251 is an equidigital number, since it uses as much as digits as its factorization.

5121251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100, while the sum is 17.

The square root of 5121251 is about 2263.0181174706. The cubic root of 5121251 is about 172.3688115479.

Adding to 5121251 its reverse (1521215), we get a palindrome (6642466).

It can be divided in two parts, 51 and 21251, that multiplied together give a palindrome (1083801).

The spelling of 5121251 in words is "five million, one hundred twenty-one thousand, two hundred fifty-one".