142586644 has 12 divisors (see below), whose sum is σ = 249627168. Its totient is φ = 71264600.

The previous prime is 142586629. The next prime is 142586669. The reversal of 142586644 is 446685241.

142586644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 142586597 and 142586606.

It is a congruent number.

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, 7179 + ... + 18349.

It is an arithmetic number, because the mean of its divisors is an integer number (20802264).

Almost surely, 2^142586644 is an apocalyptic number.

It is an amenable number.

142586644 is a deficient number, since it is larger than the sum of its proper divisors (107040524).

142586644 is a wasteful number, since it uses less digits than its factorization.

142586644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14366 (or 14364 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The square root of 142586644 is about 11940.9649526326. The cubic root of 142586644 is about 522.4278041012.

It can be divided in two parts, 14258 and 6644, that added together give a palindrome (20902).

The spelling of 142586644 in words is "one hundred forty-two million, five hundred eighty-six thousand, six hundred forty-four".