142285448 has 8 divisors (see below), whose sum is σ = 266785230. Its totient is φ = 71142720.

The previous prime is 142285447. The next prime is 142285453. The reversal of 142285448 is 844582241.

It can be written as a sum of positive squares in only one way, i.e., 74684164 + 67601284 = 8642^2 + 8222^2 .

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

It is not an unprimeable number, because it can be changed into a prime (142285441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8892833 + ... + 8892848.

Almost surely, 2^142285448 is an apocalyptic number.

It is an amenable number.

142285448 is a deficient number, since it is larger than the sum of its proper divisors (124499782).

142285448 is a wasteful number, since it uses less digits than its factorization.

142285448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17785687 (or 17785683 counting only the distinct ones).

The product of its digits is 81920, while the sum is 38.

The square root of 142285448 is about 11928.3464067741. The cubic root of 142285448 is about 522.0596908689.

The spelling of 142285448 in words is "one hundred forty-two million, two hundred eighty-five thousand, four hundred forty-eight".