142243055 has 16 divisors (see below), whose sum is σ = 175255680. Its totient is φ = 110792448.

The previous prime is 142243051. The next prime is 142243061. The reversal of 142243055 is 550342241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142243055 - 2² = 142243051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142243051) 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 15 ways as a sum of consecutive naturals, for example, 26369 + ... + 31301.

It is an arithmetic number, because the mean of its divisors is an integer number (10953480).

Almost surely, 2^142243055 is an apocalyptic number.

142243055 is a deficient number, since it is larger than the sum of its proper divisors (33012625).

142243055 is an equidigital number, since it uses as much as digits as its factorization.

142243055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5090.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 142243055 is about 11926.5692887771. The cubic root of 142243055 is about 522.0078376514.

Adding to 142243055 its reverse (550342241), we get a palindrome (692585296).

The spelling of 142243055 in words is "one hundred forty-two million, two hundred forty-three thousand, fifty-five".