142421255 has 8 divisors (see below), whose sum is σ = 171414672. Its totient is φ = 113597568.

The previous prime is 142421239. The next prime is 142421261. The reversal of 142421255 is 552124241.

142421255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 142421255 - 2⁴ = 142421239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40577 + ... + 43946.

It is an arithmetic number, because the mean of its divisors is an integer number (21426834).

Almost surely, 2^142421255 is an apocalyptic number.

142421255 is a deficient number, since it is larger than the sum of its proper divisors (28993417).

142421255 is an equidigital number, since it uses as much as digits as its factorization.

142421255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84865.

The product of its digits is 3200, while the sum is 26.

The square root of 142421255 is about 11934.0376654341. The cubic root of 142421255 is about 522.2257345890.

Adding to 142421255 its reverse (552124241), we get a palindrome (694545496).

The spelling of 142421255 in words is "one hundred forty-two million, four hundred twenty-one thousand, two hundred fifty-five".