142234686 has 24 divisors (see below), whose sum is σ = 336191544. Its totient is φ = 43101360.

The previous prime is 142234679. The next prime is 142234709. The reversal of 142234686 is 686432241.

142234686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142234686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 358981 + ... + 359376.

It is an arithmetic number, because the mean of its divisors is an integer number (14007981).

Almost surely, 2^142234686 is an apocalyptic number.

142234686 is an abundant number, since it is smaller than the sum of its proper divisors (193956858).

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

142234686 is a wasteful number, since it uses less digits than its factorization.

142234686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718376 (or 718373 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 142234686 is about 11926.2184283200. The cubic root of 142234686 is about 521.9975998480.

The spelling of 142234686 in words is "one hundred forty-two million, two hundred thirty-four thousand, six hundred eighty-six".