2145534112 has 48 divisors (see below), whose sum is σ = 4490488800. Its totient is φ = 1006214400.

The previous prime is 2145534109. The next prime is 2145534143. The reversal of 2145534112 is 2114355412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43939 + ... + 78877.

It is an arithmetic number, because the mean of its divisors is an integer number (93551850).

Almost surely, 2^2145534112 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 2145534112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2245244400).

2145534112 is an abundant number, since it is smaller than the sum of its proper divisors (2344954688).

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

2145534112 is a wasteful number, since it uses less digits than its factorization.

2145534112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35069 (or 35061 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 2145534112 is about 46319.9105353195. The cubic root of 2145534112 is about 1289.7686246487.

Adding to 2145534112 its reverse (2114355412), we get a palindrome (4259889524).

The spelling of 2145534112 in words is "two billion, one hundred forty-five million, five hundred thirty-four thousand, one hundred twelve".