51043146 has 128 divisors (see below), whose sum is σ = 138184704. Its totient is φ = 12165120.

The previous prime is 51043127. The next prime is 51043147. The reversal of 51043146 is 64134015.

51043146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51043147) 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 63 ways as a sum of consecutive naturals, for example, 526170 + ... + 526266.

It is an arithmetic number, because the mean of its divisors is an integer number (1079568).

Almost surely, 2^51043146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51043146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69092352).

51043146 is an abundant number, since it is smaller than the sum of its proper divisors (87141558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51043146 is a wasteful number, since it uses less digits than its factorization.

51043146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 51043146 is about 7144.4486141339. The cubic root of 51043146 is about 370.9475251690.

The spelling of 51043146 in words is "fifty-one million, forty-three thousand, one hundred forty-six".