142012055 has 4 divisors (see below), whose sum is σ = 170414472. Its totient is φ = 113609640.

The previous prime is 142012037. The next prime is 142012063. The reversal of 142012055 is 550210241.

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

It is not a de Polignac number, because 142012055 - 2⁸ = 142011799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 14201201 + ... + 14201210.

It is an arithmetic number, because the mean of its divisors is an integer number (42603618).

Almost surely, 2^142012055 is an apocalyptic number.

142012055 is a deficient number, since it is larger than the sum of its proper divisors (28402417).

142012055 is an equidigital number, since it uses as much as digits as its factorization.

142012055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28402416.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 142012055 is about 11916.8810936419. The cubic root of 142012055 is about 521.7251076329.

Adding to 142012055 its reverse (550210241), we get a palindrome (692222296).

The spelling of 142012055 in words is "one hundred forty-two million, twelve thousand, fifty-five".