142139204 has 6 divisors (see below), whose sum is σ = 248743614. Its totient is φ = 71069600.

The previous prime is 142139203. The next prime is 142139213. The reversal of 142139204 is 402931241.

142139204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 98049604 + 44089600 = 9902^2 + 6640^2 .

It is not an unprimeable number, because it can be changed into a prime (142139203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17767397 + ... + 17767404.

It is an arithmetic number, because the mean of its divisors is an integer number (41457269).

Almost surely, 2^142139204 is an apocalyptic number.

It is an amenable number.

142139204 is a deficient number, since it is larger than the sum of its proper divisors (106604410).

142139204 is a wasteful number, since it uses less digits than its factorization.

142139204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35534805 (or 35534803 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 142139204 is about 11922.2147271386. The cubic root of 142139204 is about 521.8807682153.

The spelling of 142139204 in words is "one hundred forty-two million, one hundred thirty-nine thousand, two hundred four".