142434617 has 4 divisors (see below), whose sum is σ = 153391140. Its totient is φ = 131478096.

The previous prime is 142434587. The next prime is 142434623. The reversal of 142434617 is 716434241.

142434617 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 an emirpimes, since its reverse is a distinct semiprime: 716434241 = 29 ⋅24704629.

It can be written as a sum of positive squares in 2 ways, for example, as 36529936 + 105904681 = 6044^2 + 10291^2 .

It is a cyclic number.

It is not a de Polignac number, because 142434617 - 2¹⁰ = 142433593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142434637) 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, 5478242 + ... + 5478267.

It is an arithmetic number, because the mean of its divisors is an integer number (38347785).

Almost surely, 2^142434617 is an apocalyptic number.

It is an amenable number.

142434617 is a deficient number, since it is larger than the sum of its proper divisors (10956523).

142434617 is a wasteful number, since it uses less digits than its factorization.

142434617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10956522.

The product of its digits is 16128, while the sum is 32.

The square root of 142434617 is about 11934.5974795969. The cubic root of 142434617 is about 522.2420658640.

Adding to 142434617 its reverse (716434241), we get a palindrome (858868858).

The spelling of 142434617 in words is "one hundred forty-two million, four hundred thirty-four thousand, six hundred seventeen".