142424213 has 4 divisors (see below), whose sum is σ = 145736448. Its totient is φ = 139111980.

The previous prime is 142424189. The next prime is 142424263. The reversal of 142424213 is 312424241.

142424213 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, and also an emirpimes, since its reverse is a distinct semiprime: 312424241 = 53 ⋅5894797.

It is a cyclic number.

It is not a de Polignac number, because 142424213 - 2¹⁰ = 142423189 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 (142424263) 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, 1656053 + ... + 1656138.

It is an arithmetic number, because the mean of its divisors is an integer number (36434112).

Almost surely, 2^142424213 is an apocalyptic number.

It is an amenable number.

142424213 is a deficient number, since it is larger than the sum of its proper divisors (3312235).

142424213 is an equidigital number, since it uses as much as digits as its factorization.

142424213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312234.

The product of its digits is 1536, while the sum is 23.

The square root of 142424213 is about 11934.1615960234. The cubic root of 142424213 is about 522.2293499974.

Adding to 142424213 its reverse (312424241), we get a palindrome (454848454).

The spelling of 142424213 in words is "one hundred forty-two million, four hundred twenty-four thousand, two hundred thirteen".