5121289 has 2 divisors, whose sum is σ = 5121290. Its totient is φ = 5121288.

The previous prime is 5121287. The next prime is 5121323. The reversal of 5121289 is 9821215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5107600 + 13689 = 2260^2 + 117^2 .

It is a cyclic number.

It is not a de Polignac number, because 5121289 - 2¹ = 5121287 is a prime.

Together with 5121287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5121287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560644 + 2560645.

It is an arithmetic number, because the mean of its divisors is an integer number (2560645).

Almost surely, 2^5121289 is an apocalyptic number.

It is an amenable number.

5121289 is a deficient number, since it is larger than the sum of its proper divisors (1).

5121289 is an equidigital number, since it uses as much as digits as its factorization.

5121289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 28.

The square root of 5121289 is about 2263.0265133224. The cubic root of 5121289 is about 172.3692378760.

The spelling of 5121289 in words is "five million, one hundred twenty-one thousand, two hundred eighty-nine".