51148230 has 64 divisors (see below), whose sum is σ = 141308928. Its totient is φ = 11606400.

The previous prime is 51148213. The next prime is 51148243. The reversal of 51148230 is 3284115.

51148230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51148230² = 5232282864265800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51148230.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 30904 + ... + 32516.

It is an arithmetic number, because the mean of its divisors is an integer number (2207952).

Almost surely, 2^51148230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51148230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70654464).

51148230 is an abundant number, since it is smaller than the sum of its proper divisors (90160698).

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

51148230 is a wasteful number, since it uses less digits than its factorization.

51148230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 51148230 is about 7151.7990743588. The cubic root of 51148230 is about 371.2019108091.

The spelling of 51148230 in words is "fifty-one million, one hundred forty-eight thousand, two hundred thirty".