143155 has 4 divisors (see below), whose sum is σ = 171792. Its totient is φ = 114520.

The previous prime is 143141. The next prime is 143159. The reversal of 143155 is 551341.

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

It is not a de Polignac number, because 143155 - 2¹¹ = 141107 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (143159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14311 + ... + 14320.

It is an arithmetic number, because the mean of its divisors is an integer number (42948).

2¹⁴³¹⁵⁵ is an apocalyptic number.

143155 is a deficient number, since it is larger than the sum of its proper divisors (28637).

143155 is an equidigital number, since it uses as much as digits as its factorization.

143155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28636.

The product of its digits is 300, while the sum is 19.

The square root of 143155 is about 378.3582957991. The cubic root of 143155 is about 52.3121023143.

Adding to 143155 its reverse (551341), we get a palindrome (694496).

The spelling of 143155 in words is "one hundred forty-three thousand, one hundred fifty-five".