142544244 has 24 divisors (see below), whose sum is σ = 335145888. Its totient is φ = 47151520.

The previous prime is 142544243. The next prime is 142544257. The reversal of 142544244 is 442445241.

It is a super-2 number, since 2×142544244² = 40637722995063072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142544243) 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, 43767 + ... + 46910.

It is an arithmetic number, because the mean of its divisors is an integer number (13964412).

Almost surely, 2^142544244 is an apocalyptic number.

It is an amenable number.

142544244 is an abundant number, since it is smaller than the sum of its proper divisors (192601644).

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

142544244 is a wasteful number, since it uses less digits than its factorization.

142544244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90815 (or 90813 counting only the distinct ones).

The product of its digits is 20480, while the sum is 30.

The square root of 142544244 is about 11939.1894197219. The cubic root of 142544244 is about 522.3760153916.

Adding to 142544244 its reverse (442445241), we get a palindrome (584989485).

The spelling of 142544244 in words is "one hundred forty-two million, five hundred forty-four thousand, two hundred forty-four".