51314131 has 4 divisors (see below), whose sum is σ = 55979064. Its totient is φ = 46649200.

The previous prime is 51314119. The next prime is 51314149. The reversal of 51314131 is 13141315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51314131 - 2¹⁷ = 51183059 is a prime.

It is a super-2 number, since 2×51314131² = 5266280080570322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51314099 and 51314108.

It is not an unprimeable number, because it can be changed into a prime (51314101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2332450 + ... + 2332471.

It is an arithmetic number, because the mean of its divisors is an integer number (13994766).

Almost surely, 2^51314131 is an apocalyptic number.

51314131 is a deficient number, since it is larger than the sum of its proper divisors (4664933).

51314131 is a wasteful number, since it uses less digits than its factorization.

51314131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664932.

The product of its digits is 180, while the sum is 19.

The square root of 51314131 is about 7163.3882346275. The cubic root of 51314131 is about 371.6028129582.

Adding to 51314131 its reverse (13141315), we get a palindrome (64455446).

The spelling of 51314131 in words is "fifty-one million, three hundred fourteen thousand, one hundred thirty-one".