5131481 has 2 divisors, whose sum is σ = 5131482. Its totient is φ = 5131480.

The previous prime is 5131459. The next prime is 5131517. The reversal of 5131481 is 1841315.

5131481 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., 4583881 + 547600 = 2141^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 5131481 - 2⁶ = 5131417 is a prime.

It is a super-2 number, since 2×5131481² = 52664194506722, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5131421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2565740 + 2565741.

It is an arithmetic number, because the mean of its divisors is an integer number (2565741).

Almost surely, 2^5131481 is an apocalyptic number.

It is an amenable number.

5131481 is a deficient number, since it is larger than the sum of its proper divisors (1).

5131481 is an equidigital number, since it uses as much as digits as its factorization.

5131481 is an evil number, because the sum of its binary digits is even.

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

The square root of 5131481 is about 2265.2772457251. The cubic root of 5131481 is about 172.4835074899.

Adding to 5131481 its reverse (1841315), we get a palindrome (6972796).

The spelling of 5131481 in words is "five million, one hundred thirty-one thousand, four hundred eighty-one".