156143 has 4 divisors (see below), whose sum is σ = 168168. Its totient is φ = 144120.

The previous prime is 156139. The next prime is 156151. The reversal of 156143 is 341651.

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

It is a cyclic number.

It is not a de Polignac number, because 156143 - 2² = 156139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5993 + ... + 6018.

It is an arithmetic number, because the mean of its divisors is an integer number (42042).

2¹⁵⁶¹⁴³ is an apocalyptic number.

156143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

156143 is a deficient number, since it is larger than the sum of its proper divisors (12025).

156143 is a wasteful number, since it uses less digits than its factorization.

156143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12024.

The product of its digits is 360, while the sum is 20.

The square root of 156143 is about 395.1493388581. The cubic root of 156143 is about 53.8485698026.

Adding to 156143 its reverse (341651), we get a palindrome (497794).

The spelling of 156143 in words is "one hundred fifty-six thousand, one hundred forty-three".