142156424 has 16 divisors (see below), whose sum is σ = 269755920. Its totient is φ = 70221520.

The previous prime is 142156411. The next prime is 142156433. The reversal of 142156424 is 424651241.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106382 + ... + 107709.

It is an arithmetic number, because the mean of its divisors is an integer number (16859745).

Almost surely, 2^142156424 is an apocalyptic number.

It is an amenable number.

142156424 is a deficient number, since it is larger than the sum of its proper divisors (127599496).

142156424 is a wasteful number, since it uses less digits than its factorization.

142156424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214180 (or 214176 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 142156424 is about 11922.9368865225. The cubic root of 142156424 is about 521.9018424479.

The spelling of 142156424 in words is "one hundred forty-two million, one hundred fifty-six thousand, four hundred twenty-four".