142404212 has 12 divisors (see below), whose sum is σ = 252927360. Its totient is φ = 70139256.

The previous prime is 142404209. The next prime is 142404233. The reversal of 142404212 is 212404241.

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, 265412 + ... + 265947.

It is an arithmetic number, because the mean of its divisors is an integer number (21077280).

Almost surely, 2^142404212 is an apocalyptic number.

It is an amenable number.

142404212 is a deficient number, since it is larger than the sum of its proper divisors (110523148).

142404212 is a wasteful number, since it uses less digits than its factorization.

142404212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531430 (or 531428 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 142404212 is about 11933.3235940370. The cubic root of 142404212 is about 522.2049028476.

Adding to 142404212 its reverse (212404241), we get a palindrome (354808453).

The spelling of 142404212 in words is "one hundred forty-two million, four hundred four thousand, two hundred twelve".