52142112 has 144 divisors (see below), whose sum is σ = 164324160. Its totient is φ = 15552000.

The previous prime is 52142071. The next prime is 52142141. The reversal of 52142112 is 21124125.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 345237 + ... + 345387.

It is an arithmetic number, because the mean of its divisors is an integer number (1141140).

Almost surely, 2^52142112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52142112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82162080).

52142112 is an abundant number, since it is smaller than the sum of its proper divisors (112182048).

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

52142112 is a wasteful number, since it uses less digits than its factorization.

52142112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 276 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 52142112 is about 7220.9495220504. The cubic root of 52142112 is about 373.5908285955.

Adding to 52142112 its reverse (21124125), we get a palindrome (73266237).

The spelling of 52142112 in words is "fifty-two million, one hundred forty-two thousand, one hundred twelve".