2143555430 has 32 divisors (see below), whose sum is σ = 3908723040. Its totient is φ = 846311680.

The previous prime is 2143555411. The next prime is 2143555439. The reversal of 2143555430 is 345553412.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143555439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240860 + ... + 249600.

It is an arithmetic number, because the mean of its divisors is an integer number (122147595).

Almost surely, 2^2143555430 is an apocalyptic number.

2143555430 is a deficient number, since it is larger than the sum of its proper divisors (1765167610).

2143555430 is a wasteful number, since it uses less digits than its factorization.

2143555430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9064.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 2143555430 is about 46298.5467374517. The cubic root of 2143555430 is about 1289.3720137108.

The spelling of 2143555430 in words is "two billion, one hundred forty-three million, five hundred fifty-five thousand, four hundred thirty".