142155 has 32 divisors (see below), whose sum is σ = 275520. Its totient is φ = 69984.

The previous prime is 142151. The next prime is 142157. The reversal of 142155 is 551241.

142155 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 142155 - 2² = 142151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10929 + ... + 10941.

It is an arithmetic number, because the mean of its divisors is an integer number (8610).

2¹⁴²¹⁵⁵ is an apocalyptic number.

142155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142155 is a deficient number, since it is larger than the sum of its proper divisors (133365).

142155 is an frugal number, since it uses more digits than its factorization.

142155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39 (or 21 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 142155 is about 377.0344811818. The cubic root of 142155 is about 52.1900099788.

Adding to 142155 its reverse (551241), we get a palindrome (693396).

The spelling of 142155 in words is "one hundred forty-two thousand, one hundred fifty-five".