2145454500 has 96 divisors (see below), whose sum is σ = 7140107520. Its totient is φ = 490387200.

The previous prime is 2145454489. The next prime is 2145454501. The reversal of 2145454500 is 54545412.

2145454500 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2145454501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91665 + ... + 112664.

It is an arithmetic number, because the mean of its divisors is an integer number (74376120).

Almost surely, 2^2145454500 is an apocalyptic number.

2145454500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145454500 is an abundant number, since it is smaller than the sum of its proper divisors (4994653020).

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

2145454500 is a wasteful number, since it uses less digits than its factorization.

2145454500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204358 (or 204346 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2145454500 is about 46319.0511560848. The cubic root of 2145454500 is about 1289.7526717710.

Adding to 2145454500 its reverse (54545412), we get a palindrome (2199999912).

The spelling of 2145454500 in words is "two billion, one hundred forty-five million, four hundred fifty-four thousand, five hundred".