5120681 has 2 divisors, whose sum is σ = 5120682. Its totient is φ = 5120680.

The previous prime is 5120677. The next prime is 5120707. The reversal of 5120681 is 1860215.

5120681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5040025 + 80656 = 2245^2 + 284^2 .

It is a cyclic number.

It is not a de Polignac number, because 5120681 - 2² = 5120677 is a prime.

It is a super-2 number, since 2×5120681² = 52442747807522, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5122681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2560340 + 2560341.

It is an arithmetic number, because the mean of its divisors is an integer number (2560341).

Almost surely, 2^5120681 is an apocalyptic number.

It is an amenable number.

5120681 is a deficient number, since it is larger than the sum of its proper divisors (1).

5120681 is an equidigital number, since it uses as much as digits as its factorization.

5120681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 5120681 is about 2262.8921759554. The cubic root of 5120681 is about 172.3624163743.

Adding to 5120681 its reverse (1860215), we get a palindrome (6980896).

The spelling of 5120681 in words is "five million, one hundred twenty thousand, six hundred eighty-one".