142023535 has 4 divisors (see below), whose sum is σ = 170428248. Its totient is φ = 113618824.

The previous prime is 142023533. The next prime is 142023547. The reversal of 142023535 is 535320241.

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

It is a cyclic number.

It is not a de Polignac number, because 142023535 - 2¹ = 142023533 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 (142023533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14202349 + ... + 14202358.

It is an arithmetic number, because the mean of its divisors is an integer number (42607062).

Almost surely, 2^142023535 is an apocalyptic number.

142023535 is a deficient number, since it is larger than the sum of its proper divisors (28404713).

142023535 is an equidigital number, since it uses as much as digits as its factorization.

142023535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28404712.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 142023535 is about 11917.3627535626. The cubic root of 142023535 is about 521.7391656949.

Adding to 142023535 its reverse (535320241), we get a palindrome (677343776).

The spelling of 142023535 in words is "one hundred forty-two million, twenty-three thousand, five hundred thirty-five".