142331144 has 16 divisors (see below), whose sum is σ = 270630720. Its totient is φ = 70162960.

The previous prime is 142331047. The next prime is 142331173. The reversal of 142331144 is 441133241.

It is an unprimeable number.

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, 124724 + ... + 125859.

It is an arithmetic number, because the mean of its divisors is an integer number (16914420).

Almost surely, 2^142331144 is an apocalyptic number.

It is an amenable number.

142331144 is a deficient number, since it is larger than the sum of its proper divisors (128299576).

142331144 is a wasteful number, since it uses less digits than its factorization.

142331144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250660 (or 250656 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 142331144 is about 11930.2616903402. The cubic root of 142331144 is about 522.1155726347.

Adding to 142331144 its reverse (441133241), we get a palindrome (583464385).

The spelling of 142331144 in words is "one hundred forty-two million, three hundred thirty-one thousand, one hundred forty-four".