142144144 has 10 divisors (see below), whose sum is σ = 275404310. Its totient is φ = 71072064.

The previous prime is 142144141. The next prime is 142144151. The reversal of 142144144 is 441441241.

It can be written as a sum of positive squares in only one way, i.e., 79923600 + 62220544 = 8940^2 + 7888^2 .

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

It is not an unprimeable number, because it can be changed into a prime (142144141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4441989 + ... + 4442020.

It is an arithmetic number, because the mean of its divisors is an integer number (27540431).

Almost surely, 2^142144144 is an apocalyptic number.

It is an amenable number.

142144144 is a deficient number, since it is larger than the sum of its proper divisors (133260166).

142144144 is an equidigital number, since it uses as much as digits as its factorization.

142144144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8884017 (or 8884011 counting only the distinct ones).

The product of its digits is 2048, while the sum is 25.

The square root of 142144144 is about 11922.4219016104. The cubic root of 142144144 is about 521.8868140751.

Adding to 142144144 its reverse (441441241), we get a palindrome (583585385).

The spelling of 142144144 in words is "one hundred forty-two million, one hundred forty-four thousand, one hundred forty-four".