142230771 has 12 divisors (see below), whose sum is σ = 206511448. Its totient is φ = 94328064.

The previous prime is 142230733. The next prime is 142230787. The reversal of 142230771 is 177032241.

It is a happy number.

142230771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142230771 - 2⁶ = 142230707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142238771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39205 + ... + 42678.

Almost surely, 2^142230771 is an apocalyptic number.

142230771 is a deficient number, since it is larger than the sum of its proper divisors (64280677).

142230771 is a wasteful number, since it uses less digits than its factorization.

142230771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82082 (or 82079 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 142230771 is about 11926.0542930175. The cubic root of 142230771 is about 521.9928104880.

The spelling of 142230771 in words is "one hundred forty-two million, two hundred thirty thousand, seven hundred seventy-one".