142313 has 4 divisors (see below), whose sum is σ = 144708. Its totient is φ = 139920.

The previous prime is 142297. The next prime is 142319. The reversal of 142313 is 313241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21904 + 120409 = 148^2 + 347^2 .

It is a cyclic number.

It is not a de Polignac number, because 142313 - 2⁴ = 142297 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 (142319) 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, 1106 + ... + 1227.

It is an arithmetic number, because the mean of its divisors is an integer number (36177).

2¹⁴²³¹³ is an apocalyptic number.

It is an amenable number.

142313 is a deficient number, since it is larger than the sum of its proper divisors (2395).

142313 is an equidigital number, since it uses as much as digits as its factorization.

142313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394.

The product of its digits is 72, while the sum is 14.

The square root of 142313 is about 377.2439529005. The cubic root of 142313 is about 52.2093385718.

Subtracting from 142313 its product of digits (72), we obtain a palindrome (142241).

Adding to 142313 its reverse (313241), we get a palindrome (455554).

The spelling of 142313 in words is "one hundred forty-two thousand, three hundred thirteen".