142336423 has 4 divisors (see below), whose sum is σ = 142368840. Its totient is φ = 142304008.

The previous prime is 142336399. The next prime is 142336459. The reversal of 142336423 is 324633241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324633241 = 17 ⋅19096073.

It is a cyclic number.

It is not a de Polignac number, because 142336423 - 2¹⁷ = 142205351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142336391 and 142336400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142336483) 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, 8353 + ... + 18826.

It is an arithmetic number, because the mean of its divisors is an integer number (35592210).

Almost surely, 2^142336423 is an apocalyptic number.

142336423 is a deficient number, since it is larger than the sum of its proper divisors (32417).

142336423 is an equidigital number, since it uses as much as digits as its factorization.

142336423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32416.

The product of its digits is 10368, while the sum is 28.

The square root of 142336423 is about 11930.4829323879. The cubic root of 142336423 is about 522.1220275677.

Adding to 142336423 its reverse (324633241), we get a palindrome (466969664).

The spelling of 142336423 in words is "one hundred forty-two million, three hundred thirty-six thousand, four hundred twenty-three".