142718 has 4 divisors (see below), whose sum is σ = 214080. Its totient is φ = 71358.

The previous prime is 142711. The next prime is 142733. The reversal of 142718 is 817241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 817241 = 17 ⋅48073.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 142693 and 142702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142711) 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 as a sum of consecutive naturals, namely, 35678 + ... + 35681.

It is an arithmetic number, because the mean of its divisors is an integer number (53520).

2¹⁴²⁷¹⁸ is an apocalyptic number.

142718 is a deficient number, since it is larger than the sum of its proper divisors (71362).

142718 is an equidigital number, since it uses as much as digits as its factorization.

142718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71361.

The product of its digits is 448, while the sum is 23.

The square root of 142718 is about 377.7803594683. The cubic root of 142718 is about 52.2588181358.

Adding to 142718 its reverse (817241), we get a palindrome (959959).

The spelling of 142718 in words is "one hundred forty-two thousand, seven hundred eighteen".