142104212 has 18 divisors (see below), whose sum is σ = 259968618. Its totient is φ = 67961872.

The previous prime is 142104181. The next prime is 142104223. The reversal of 142104212 is 212401241.

It can be written as a sum of positive squares in only one way, i.e., 83795716 + 58308496 = 9154^2 + 7636^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31463 + ... + 35694.

It is an arithmetic number, because the mean of its divisors is an integer number (14442701).

Almost surely, 2^142104212 is an apocalyptic number.

It is an amenable number.

142104212 is a deficient number, since it is larger than the sum of its proper divisors (117864406).

142104212 is a wasteful number, since it uses less digits than its factorization.

142104212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67207 (or 67182 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 142104212 is about 11920.7471242368. The cubic root of 142104212 is about 521.8379389556.

Adding to 142104212 its reverse (212401241), we get a palindrome (354505453).

The spelling of 142104212 in words is "one hundred forty-two million, one hundred four thousand, two hundred twelve".