5121841 has 2 divisors, whose sum is σ = 5121842. Its totient is φ = 5121840.

The previous prime is 5121839. The next prime is 5121871. The reversal of 5121841 is 1481215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3150625 + 1971216 = 1775^2 + 1404^2 .

It is a cyclic number.

It is not a de Polignac number, because 5121841 - 2¹ = 5121839 is a prime.

Together with 5121839, it forms a pair of twin primes.

It is an Ulam number.

5121841 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5121821) 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, 2560920 + 2560921.

It is an arithmetic number, because the mean of its divisors is an integer number (2560921).

Almost surely, 2^5121841 is an apocalyptic number.

It is an amenable number.

5121841 is a deficient number, since it is larger than the sum of its proper divisors (1).

5121841 is an equidigital number, since it uses as much as digits as its factorization.

5121841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320, while the sum is 22.

The square root of 5121841 is about 2263.1484706046. The cubic root of 5121841 is about 172.3754306139.

The spelling of 5121841 in words is "five million, one hundred twenty-one thousand, eight hundred forty-one".