143112155 has 4 divisors (see below), whose sum is σ = 171734592. Its totient is φ = 114489720.

The previous prime is 143112149. The next prime is 143112197. The reversal of 143112155 is 551211341.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 143112155 - 2⁶ = 143112091 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 143112155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14311211 + ... + 14311220.

It is an arithmetic number, because the mean of its divisors is an integer number (42933648).

Almost surely, 2^143112155 is an apocalyptic number.

143112155 is a deficient number, since it is larger than the sum of its proper divisors (28622437).

143112155 is an equidigital number, since it uses as much as digits as its factorization.

143112155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28622436.

The product of its digits is 600, while the sum is 23.

The square root of 143112155 is about 11962.9492601114. The cubic root of 143112155 is about 523.0688294679.

Adding to 143112155 its reverse (551211341), we get a palindrome (694323496).

The spelling of 143112155 in words is "one hundred forty-three million, one hundred twelve thousand, one hundred fifty-five".