2153405140 has 24 divisors (see below), whose sum is σ = 4527929952. Its totient is φ = 860261280.

The previous prime is 2153405123. The next prime is 2153405159. The reversal of 2153405140 is 415043512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52666 + ... + 84145.

It is an arithmetic number, because the mean of its divisors is an integer number (188663748).

Almost surely, 2^2153405140 is an apocalyptic number.

2153405140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2153405140 is an abundant number, since it is smaller than the sum of its proper divisors (2374524812).

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

2153405140 is a wasteful number, since it uses less digits than its factorization.

2153405140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137607 (or 137605 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2153405140 is about 46404.7965193255. The cubic root of 2153405140 is about 1291.3438992250.

Adding to 2153405140 its reverse (415043512), we get a palindrome (2568448652).

The spelling of 2153405140 in words is "two billion, one hundred fifty-three million, four hundred five thousand, one hundred forty".