143900055 has 24 divisors (see below), whose sum is σ = 268614528. Its totient is φ = 70842816.

The previous prime is 143900039. The next prime is 143900063. The reversal of 143900055 is 550009341.

It is not a de Polignac number, because 143900055 - 2⁴ = 143900039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122407 + ... + 123576.

It is an arithmetic number, because the mean of its divisors is an integer number (11192272).

Almost surely, 2^143900055 is an apocalyptic number.

143900055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

143900055 is a deficient number, since it is larger than the sum of its proper divisors (124714473).

143900055 is a wasteful number, since it uses less digits than its factorization.

143900055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246007 (or 246004 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 143900055 is about 11995.8349021650. The cubic root of 143900055 is about 524.0269868878.

Adding to 143900055 its reverse (550009341), we get a palindrome (693909396).

The spelling of 143900055 in words is "one hundred forty-three million, nine hundred thousand, fifty-five".