142244142 has 8 divisors (see below), whose sum is σ = 284488296. Its totient is φ = 47414712.

The previous prime is 142244111. The next prime is 142244143. The reversal of 142244142 is 241442241.

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

142244142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142244143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11853673 + ... + 11853684.

It is an arithmetic number, because the mean of its divisors is an integer number (35561037).

Almost surely, 2^142244142 is an apocalyptic number.

142244142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142244142 is a wasteful number, since it uses less digits than its factorization.

142244142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23707362.

The product of its digits is 2048, while the sum is 24.

The square root of 142244142 is about 11926.6148592130. The cubic root of 142244142 is about 522.0091673498.

Adding to 142244142 its reverse (241442241), we get a palindrome (383686383).

The spelling of 142244142 in words is "one hundred forty-two million, two hundred forty-four thousand, one hundred forty-two".