142000424 has 8 divisors (see below), whose sum is σ = 266250810. Its totient is φ = 71000208.

The previous prime is 142000393. The next prime is 142000451. The reversal of 142000424 is 424000241.

It can be written as a sum of positive squares in only one way, i.e., 134977924 + 7022500 = 11618^2 + 2650^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8875019 + ... + 8875034.

Almost surely, 2^142000424 is an apocalyptic number.

It is an amenable number.

142000424 is a deficient number, since it is larger than the sum of its proper divisors (124250386).

142000424 is a wasteful number, since it uses less digits than its factorization.

142000424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17750059 (or 17750055 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 142000424 is about 11916.3930784445. The cubic root of 142000424 is about 521.7108638881.

Adding to 142000424 its reverse (424000241), we get a palindrome (566000665).

The spelling of 142000424 in words is "one hundred forty-two million, four hundred twenty-four", and thus it is an aban number.