5782121 has 2 divisors, whose sum is σ = 5782122. Its totient is φ = 5782120.

The previous prime is 5782109. The next prime is 5782157. The reversal of 5782121 is 1212875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5569600 + 212521 = 2360^2 + 461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5782121 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5782171) 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, 2891060 + 2891061.

It is an arithmetic number, because the mean of its divisors is an integer number (2891061).

Almost surely, 2^5782121 is an apocalyptic number.

It is an amenable number.

5782121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5782121 is an equidigital number, since it uses as much as digits as its factorization.

5782121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 26.

The square root of 5782121 is about 2404.6041254227. The cubic root of 5782121 is about 179.4853716195.

Adding to 5782121 its reverse (1212875), we get a palindrome (6994996).

The spelling of 5782121 in words is "five million, seven hundred eighty-two thousand, one hundred twenty-one".