5155131481 has 2 divisors, whose sum is σ = 5155131482. Its totient is φ = 5155131480.

The previous prime is 5155131479. The next prime is 5155131511. The reversal of 5155131481 is 1841315515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4406835456 + 748296025 = 66384^2 + 27355^2 .

It is a cyclic number.

It is not a de Polignac number, because 5155131481 - 2¹ = 5155131479 is a prime.

It is a super-2 number, since 2×5155131481² = 53150761172794506722, which contains 22 as substring.

Together with 5155131479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5155131881) 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, 2577565740 + 2577565741.

It is an arithmetic number, because the mean of its divisors is an integer number (2577565741).

Almost surely, 2^5155131481 is an apocalyptic number.

It is an amenable number.

5155131481 is a deficient number, since it is larger than the sum of its proper divisors (1).

5155131481 is an equidigital number, since it uses as much as digits as its factorization.

5155131481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 34.

The square root of 5155131481 is about 71799.2442926804. The cubic root of 5155131481 is about 1727.4808782317.

Adding to 5155131481 its reverse (1841315515), we get a palindrome (6996446996).

The spelling of 5155131481 in words is "five billion, one hundred fifty-five million, one hundred thirty-one thousand, four hundred eighty-one".