5115881 has 2 divisors, whose sum is σ = 5115882. Its totient is φ = 5115880.

The previous prime is 5115863. The next prime is 5115911. The reversal of 5115881 is 1885115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5107600 + 8281 = 2260^2 + 91^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5115881 is a prime.

It is a super-2 number, since 2×5115881² = 52344476812322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5115841) 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, 2557940 + 2557941.

It is an arithmetic number, because the mean of its divisors is an integer number (2557941).

Almost surely, 2^5115881 is an apocalyptic number.

It is an amenable number.

5115881 is a deficient number, since it is larger than the sum of its proper divisors (1).

5115881 is an equidigital number, since it uses as much as digits as its factorization.

5115881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1600, while the sum is 29.

The square root of 5115881 is about 2261.8313376554. The cubic root of 5115881 is about 172.3085434459.

The spelling of 5115881 in words is "five million, one hundred fifteen thousand, eight hundred eighty-one".