143320055 has 8 divisors (see below), whose sum is σ = 176632512. Its totient is φ = 111557088.

The previous prime is 143320039. The next prime is 143320069. The reversal of 143320055 is 550023341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143320055 - 2⁴ = 143320039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143320055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387167 + ... + 387536.

It is an arithmetic number, because the mean of its divisors is an integer number (22079064).

Almost surely, 2^143320055 is an apocalyptic number.

143320055 is a deficient number, since it is larger than the sum of its proper divisors (33312457).

143320055 is an equidigital number, since it uses as much as digits as its factorization.

143320055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774745.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 143320055 is about 11971.6354354783. The cubic root of 143320055 is about 523.3219954630.

Adding to 143320055 its reverse (550023341), we get a palindrome (693343396).

The spelling of 143320055 in words is "one hundred forty-three million, three hundred twenty thousand, fifty-five".