142042313 has 4 divisors (see below), whose sum is σ = 162334080. Its totient is φ = 121750548.

The previous prime is 142042301. The next prime is 142042331. The reversal of 142042313 is 313240241.

142042313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142042313 - 2¹⁴ = 142025929 is a prime.

It is a super-3 number, since 3×142042313³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142042333) 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, 10145873 + ... + 10145886.

It is an arithmetic number, because the mean of its divisors is an integer number (40583520).

Almost surely, 2^142042313 is an apocalyptic number.

It is an amenable number.

142042313 is a deficient number, since it is larger than the sum of its proper divisors (20291767).

142042313 is an equidigital number, since it uses as much as digits as its factorization.

142042313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20291766.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 142042313 is about 11918.1505696144. The cubic root of 142042313 is about 521.7621590350.

Adding to 142042313 its reverse (313240241), we get a palindrome (455282554).

The spelling of 142042313 in words is "one hundred forty-two million, forty-two thousand, three hundred thirteen".