142404235 has 8 divisors (see below), whose sum is σ = 176397696. Its totient is φ = 110248320.

The previous prime is 142404233. The next prime is 142404253. The reversal of 142404235 is 532404241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142404235 - 2¹ = 142404233 is a prime.

It is a super-2 number, since 2×142404235² = 40557932291870450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142404233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459214 + ... + 459523.

It is an arithmetic number, because the mean of its divisors is an integer number (22049712).

Almost surely, 2^142404235 is an apocalyptic number.

142404235 is a deficient number, since it is larger than the sum of its proper divisors (33993461).

142404235 is an equidigital number, since it uses as much as digits as its factorization.

142404235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918773.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 142404235 is about 11933.3245577249. The cubic root of 142404235 is about 522.2049309618.

Adding to 142404235 its reverse (532404241), we get a palindrome (674808476).

The spelling of 142404235 in words is "one hundred forty-two million, four hundred four thousand, two hundred thirty-five".