2153534120 has 32 divisors (see below), whose sum is σ = 4893435720. Its totient is φ = 852883200.

The previous prime is 2153534087. The next prime is 2153534129. The reversal of 2153534120 is 214353512.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2112137764 + 41396356 = 45958^2 + 6434^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2153534120.

It is not an unprimeable number, because it can be changed into a prime (2153534129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262487 + ... + 270566.

Almost surely, 2^2153534120 is an apocalyptic number.

2153534120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2153534120 is an abundant number, since it is smaller than the sum of its proper divisors (2739901600).

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

2153534120 is a wasteful number, since it uses less digits than its factorization.

2153534120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533165 (or 533161 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2153534120 is about 46406.1862255454. The cubic root of 2153534120 is about 1291.3696807508.

Adding to 2153534120 its reverse (214353512), we get a palindrome (2367887632).

It can be divided in two parts, 21535 and 34120, that added together give a palindrome (55655).

The spelling of 2153534120 in words is "two billion, one hundred fifty-three million, five hundred thirty-four thousand, one hundred twenty".