2143243550 has 96 divisors (see below), whose sum is σ = 4990662720. Its totient is φ = 667699200.

The previous prime is 2143243511. The next prime is 2143243561. The reversal of 2143243550 is 553423412.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166340 + ... + 178760.

It is an arithmetic number, because the mean of its divisors is an integer number (51986070).

Almost surely, 2^2143243550 is an apocalyptic number.

2143243550 is an abundant number, since it is smaller than the sum of its proper divisors (2847419170).

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

2143243550 is a wasteful number, since it uses less digits than its factorization.

2143243550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12486 (or 12481 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2143243550 is about 46295.1784746533. The cubic root of 2143243550 is about 1289.3094776018.

Adding to 2143243550 its reverse (553423412), we get a palindrome (2696666962).

The spelling of 2143243550 in words is "two billion, one hundred forty-three million, two hundred forty-three thousand, five hundred fifty".