51147123 has 8 divisors (see below), whose sum is σ = 68550288. Its totient is φ = 33921024.

The previous prime is 51147079. The next prime is 51147127. The reversal of 51147123 is 32174115.

51147123 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 not a de Polignac number, because 51147123 - 2⁶ = 51147059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51147093 and 51147102.

It is not an unprimeable number, because it can be changed into a prime (51147127) 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 7 ways as a sum of consecutive naturals, for example, 43590 + ... + 44747.

It is an arithmetic number, because the mean of its divisors is an integer number (8568786).

Almost surely, 2^51147123 is an apocalyptic number.

51147123 is a deficient number, since it is larger than the sum of its proper divisors (17403165).

51147123 is a wasteful number, since it uses less digits than its factorization.

51147123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88533.

The product of its digits is 840, while the sum is 24.

The square root of 51147123 is about 7151.7216808262. The cubic root of 51147123 is about 371.1992328182.

The spelling of 51147123 in words is "fifty-one million, one hundred forty-seven thousand, one hundred twenty-three".