142911 has 16 divisors (see below), whose sum is σ = 217600. Its totient is φ = 92664.

The previous prime is 142907. The next prime is 142939. The reversal of 142911 is 119241.

It is not a de Polignac number, because 142911 - 2² = 142907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142981) 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 15 ways as a sum of consecutive naturals, for example, 1770 + ... + 1848.

It is an arithmetic number, because the mean of its divisors is an integer number (13600).

2¹⁴²⁹¹¹ is an apocalyptic number.

142911 is a deficient number, since it is larger than the sum of its proper divisors (74689).

142911 is an equidigital number, since it uses as much as digits as its factorization.

142911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 149 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 142911 is about 378.0357125987. The cubic root of 142911 is about 52.2823643571.

The spelling of 142911 in words is "one hundred forty-two thousand, nine hundred eleven".