51131195 has 8 divisors (see below), whose sum is σ = 61395936. Its totient is φ = 40879296.

The previous prime is 51131131. The next prime is 51131207. The reversal of 51131195 is 59113115.

51131195 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51131195 - 2⁶ = 51131131 is a prime.

It is a super-2 number, since 2×51131195² = 5228798204256050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13034 + ... + 16496.

It is an arithmetic number, because the mean of its divisors is an integer number (7674492).

Almost surely, 2^51131195 is an apocalyptic number.

51131195 is a deficient number, since it is larger than the sum of its proper divisors (10264741).

51131195 is a wasteful number, since it uses less digits than its factorization.

51131195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421.

The product of its digits is 675, while the sum is 26.

The square root of 51131195 is about 7150.6080161060. The cubic root of 51131195 is about 371.1606964361.

The spelling of 51131195 in words is "fifty-one million, one hundred thirty-one thousand, one hundred ninety-five".