143440055 has 12 divisors (see below), whose sum is σ = 189199416. Its totient is φ = 104319600.

The previous prime is 143440051. The next prime is 143440057. The reversal of 143440055 is 550044341.

143440055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143440055 - 2² = 143440051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143440051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117941 + ... + 119150.

It is an arithmetic number, because the mean of its divisors is an integer number (15766618).

Almost surely, 2^143440055 is an apocalyptic number.

143440055 is a deficient number, since it is larger than the sum of its proper divisors (45759361).

143440055 is a wasteful number, since it uses less digits than its factorization.

143440055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237118 (or 237107 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 143440055 is about 11976.6462333994. The cubic root of 143440055 is about 523.4680115963.

Adding to 143440055 its reverse (550044341), we get a palindrome (693484396).

The spelling of 143440055 in words is "one hundred forty-three million, four hundred forty thousand, fifty-five".