54212130 has 144 divisors (see below), whose sum is σ = 172860480. Its totient is φ = 11721024.

The previous prime is 54212117. The next prime is 54212143. The reversal of 54212130 is 3121245.

54212130 is a `hidden beast` number, since 542 + 121 + 3 + 0 = 666.

54212130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (54212117) and next prime (54212143).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 71 ways as a sum of consecutive naturals, for example, 83467 + ... + 84113.

It is an arithmetic number, because the mean of its divisors is an integer number (1200420).

Almost surely, 2^54212130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54212130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86430240).

54212130 is an abundant number, since it is smaller than the sum of its proper divisors (118648350).

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

54212130 is a wasteful number, since it uses less digits than its factorization.

54212130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 54212130 is about 7362.8886994168. Note that the first 3 decimals coincide. The cubic root of 54212130 is about 378.4706072698.

Adding to 54212130 its reverse (3121245), we get a palindrome (57333375).

The spelling of 54212130 in words is "fifty-four million, two hundred twelve thousand, one hundred thirty".