2543161212 has 144 divisors (see below), whose sum is σ = 6925830912. Its totient is φ = 815391360.

The previous prime is 2543161207. The next prime is 2543161213. The reversal of 2543161212 is 2121613452.

2543161212 is a `hidden beast` number, since 2 + 5 + 4 + 31 + 612 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543161213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2967088 + ... + 2967944.

It is an arithmetic number, because the mean of its divisors is an integer number (48096048).

Almost surely, 2^2543161212 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 2543161212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3462915456).

2543161212 is an abundant number, since it is smaller than the sum of its proper divisors (4382669700).

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

2543161212 is a wasteful number, since it uses less digits than its factorization.

2543161212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 976 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2543161212 is about 50429.7651392508. The cubic root of 2543161212 is about 1364.9747900186.

Adding to 2543161212 its reverse (2121613452), we get a palindrome (4664774664).

The spelling of 2543161212 in words is "two billion, five hundred forty-three million, one hundred sixty-one thousand, two hundred twelve".