142241144 has 32 divisors (see below), whose sum is σ = 289804800. Its totient is φ = 65201760.

The previous prime is 142241117. The next prime is 142241147. The reversal of 142241144 is 441142241.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142241147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10382 + ... + 19805.

It is an arithmetic number, because the mean of its divisors is an integer number (9056400).

Almost surely, 2^142241144 is an apocalyptic number.

It is an amenable number.

142241144 is an abundant number, since it is smaller than the sum of its proper divisors (147563656).

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

142241144 is a wasteful number, since it uses less digits than its factorization.

142241144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30243 (or 30239 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

The square root of 142241144 is about 11926.4891732647. The cubic root of 142241144 is about 522.0054999592.

Adding to 142241144 its reverse (441142241), we get a palindrome (583383385).

The spelling of 142241144 in words is "one hundred forty-two million, two hundred forty-one thousand, one hundred forty-four".