2120154252 has 48 divisors (see below), whose sum is σ = 5251690080. Its totient is φ = 663411712.

The previous prime is 2120154233. The next prime is 2120154287. The reversal of 2120154252 is 2524510212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65998 + ... + 92714.

It is an arithmetic number, because the mean of its divisors is an integer number (109410210).

Almost surely, 2^2120154252 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 2120154252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2625845040).

2120154252 is an abundant number, since it is smaller than the sum of its proper divisors (3131535828).

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

2120154252 is a wasteful number, since it uses less digits than its factorization.

2120154252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27130 (or 27128 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2120154252 is about 46045.1327720966. The cubic root of 2120154252 is about 1284.6628137182.

Adding to 2120154252 its reverse (2524510212), we get a palindrome (4644664464).

The spelling of 2120154252 in words is "two billion, one hundred twenty million, one hundred fifty-four thousand, two hundred fifty-two".