5121871 has 2 divisors, whose sum is σ = 5121872. Its totient is φ = 5121870.

The previous prime is 5121841. The next prime is 5121877. The reversal of 5121871 is 1781215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5121871 - 2⁵ = 5121839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5121877) 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, 2560935 + 2560936.

It is an arithmetic number, because the mean of its divisors is an integer number (2560936).

Almost surely, 2^5121871 is an apocalyptic number.

5121871 is a deficient number, since it is larger than the sum of its proper divisors (1).

5121871 is an equidigital number, since it uses as much as digits as its factorization.

5121871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 560, while the sum is 25.

The square root of 5121871 is about 2263.1550985295. The cubic root of 5121871 is about 172.3757671629.

The spelling of 5121871 in words is "five million, one hundred twenty-one thousand, eight hundred seventy-one".