142726 has 4 divisors (see below), whose sum is σ = 214092. Its totient is φ = 71362.

The previous prime is 142711. The next prime is 142733. The reversal of 142726 is 627241.

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

It is a super-2 number, since 2×142726² = 40741422152, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 1 + 4⁵ + 7⁴ + 2¹³ + 2¹⁷ + 6² .

It is a junction number, because it is equal to n+sod(n) for n = 142697 and 142706.

It is a congruent number.

It is an unprimeable number.

142726 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35680 + ... + 35683.

It is an arithmetic number, because the mean of its divisors is an integer number (53523).

2¹⁴²⁷²⁶ is an apocalyptic number.

142726 is a deficient number, since it is larger than the sum of its proper divisors (71366).

142726 is an equidigital number, since it uses as much as digits as its factorization.

142726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71365.

The product of its digits is 672, while the sum is 22.

The square root of 142726 is about 377.7909474829. The cubic root of 142726 is about 52.2597945665.

Adding to 142726 its reverse (627241), we get a palindrome (769967).

It can be divided in two parts, 142 and 726, that added together give a palindrome (868).

The spelling of 142726 in words is "one hundred forty-two thousand, seven hundred twenty-six".