142242241 has 4 divisors (see below), whose sum is σ = 142393392. Its totient is φ = 142091092.

The previous prime is 142242211. The next prime is 142242259.

142242241 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142242241 - 2¹⁷ = 142111169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142242211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74155 + ... + 76048.

It is an arithmetic number, because the mean of its divisors is an integer number (35598348).

Almost surely, 2^142242241 is an apocalyptic number.

It is an amenable number.

142242241 is a deficient number, since it is larger than the sum of its proper divisors (151151).

142242241 is an equidigital number, since it uses as much as digits as its factorization.

142242241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151150.

The product of its digits is 1024, while the sum is 22.

The square root of 142242241 is about 11926.5351632400. The cubic root of 142242241 is about 522.0068419023.

The spelling of 142242241 in words is "one hundred forty-two million, two hundred forty-two thousand, two hundred forty-one".