142990684 has 12 divisors (see below), whose sum is σ = 251232408. Its totient is φ = 71210000.

The previous prime is 142990667. The next prime is 142990699. The reversal of 142990684 is 486099241.

142990684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142990684.

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, 70207 + ... + 72214.

It is an arithmetic number, because the mean of its divisors is an integer number (20936034).

Almost surely, 2^142990684 is an apocalyptic number.

It is an amenable number.

142990684 is a deficient number, since it is larger than the sum of its proper divisors (108241724).

142990684 is a wasteful number, since it uses less digits than its factorization.

142990684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142676 (or 142674 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 142990684 is about 11957.8712152289. The cubic root of 142990684 is about 522.9207971343.

The spelling of 142990684 in words is "one hundred forty-two million, nine hundred ninety thousand, six hundred eighty-four".