2153405000 has 80 divisors (see below), whose sum is σ = 5060880000. Its totient is φ = 858728000.

The previous prime is 2153404997. The next prime is 2153405017. The reversal of 2153405000 is 5043512.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 2994641 + ... + 2995359.

It is an arithmetic number, because the mean of its divisors is an integer number (63261000).

Almost surely, 2^2153405000 is an apocalyptic number.

2153405000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2153405000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2530440000).

2153405000 is an abundant number, since it is smaller than the sum of its proper divisors (2907475000).

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

2153405000 is an equidigital number, since it uses as much as digits as its factorization.

2153405000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2153405000 is about 46404.7950108607. The cubic root of 2153405000 is about 1291.3438712401.

Adding to 2153405000 its reverse (5043512), we get a palindrome (2158448512).

The spelling of 2153405000 in words is "two billion, one hundred fifty-three million, four hundred five thousand".