51340113 has 12 divisors (see below), whose sum is σ = 80899728. Its totient is φ = 31115160.

The previous prime is 51340087. The next prime is 51340129. The reversal of 51340113 is 31104315.

51340113 is a `hidden beast` number, since 513 + 40 + 113 = 666.

51340113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51340113 - 2⁶ = 51340049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51340193) 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 in 11 ways as a sum of consecutive naturals, for example, 259195 + ... + 259392.

It is an arithmetic number, because the mean of its divisors is an integer number (6741644).

Almost surely, 2^51340113 is an apocalyptic number.

It is an amenable number.

51340113 is a deficient number, since it is larger than the sum of its proper divisors (29559615).

51340113 is a wasteful number, since it uses less digits than its factorization.

51340113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518604 (or 518601 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 51340113 is about 7165.2015324065. The cubic root of 51340113 is about 371.6655205400.

Adding to 51340113 its reverse (31104315), we get a palindrome (82444428).

The spelling of 51340113 in words is "fifty-one million, three hundred forty thousand, one hundred thirteen".