2143545450 has 48 divisors (see below), whose sum is σ = 5429116800. Its totient is φ = 559448320.

The previous prime is 2143545431. The next prime is 2143545541. The reversal of 2143545450 is 545453412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144975 + ... + 159074.

It is an arithmetic number, because the mean of its divisors is an integer number (113106600).

Almost surely, 2^2143545450 is an apocalyptic number.

2143545450 is an abundant number, since it is smaller than the sum of its proper divisors (3285571350).

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

2143545450 is a wasteful number, since it uses less digits than its factorization.

2143545450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304111 (or 304106 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The square root of 2143545450 is about 46298.4389585653. The cubic root of 2143545450 is about 1289.3700126813.

Adding to 2143545450 its reverse (545453412), we get a palindrome (2688998862).

The spelling of 2143545450 in words is "two billion, one hundred forty-three million, five hundred forty-five thousand, four hundred fifty".