142134444 has 18 divisors (see below), whose sum is σ = 359284380. Its totient is φ = 47378136.

The previous prime is 142134409. The next prime is 142134449. The reversal of 142134444 is 444431241.

142134444 is a `hidden beast` number, since 1 + 4 + 213 + 4 + 444 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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 (142134449) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1974054 + ... + 1974125.

Almost surely, 2^142134444 is an apocalyptic number.

It is an amenable number.

142134444 is an abundant number, since it is smaller than the sum of its proper divisors (217149936).

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

142134444 is a wasteful number, since it uses less digits than its factorization.

142134444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948189 (or 3948184 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 142134444 is about 11922.0150981283. The cubic root of 142134444 is about 521.8749425174.

Adding to 142134444 its reverse (444431241), we get a palindrome (586565685).

The spelling of 142134444 in words is "one hundred forty-two million, one hundred thirty-four thousand, four hundred forty-four".