142723 has 4 divisors (see below), whose sum is σ = 163120. Its totient is φ = 122328.

The previous prime is 142711. The next prime is 142733. The reversal of 142723 is 327241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327241 = 229 ⋅1429.

It is a cyclic number.

It is not a de Polignac number, because 142723 - 2⁹ = 142211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142723.

It is not an unprimeable number, because it can be changed into a prime (142733) 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, 10188 + ... + 10201.

It is an arithmetic number, because the mean of its divisors is an integer number (40780).

2¹⁴²⁷²³ is an apocalyptic number.

142723 is a deficient number, since it is larger than the sum of its proper divisors (20397).

142723 is an equidigital number, since it uses as much as digits as its factorization.

142723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20396.

The product of its digits is 336, while the sum is 19.

The square root of 142723 is about 377.7869770122. The cubic root of 142723 is about 52.2594284093.

Adding to 142723 its reverse (327241), we get a palindrome (469964).

It can be divided in two parts, 1 and 42723, that added together give a palindrome (42724).

The spelling of 142723 in words is "one hundred forty-two thousand, seven hundred twenty-three", and thus it is an iban number.