142409706 has 16 divisors (see below), whose sum is σ = 289071264. Its totient is φ = 46761264.

The previous prime is 142409669. The next prime is 142409717. The reversal of 142409706 is 607904241.

It is a happy number.

142409706 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176725 + ... + 177528.

It is an arithmetic number, because the mean of its divisors is an integer number (18066954).

Almost surely, 2^142409706 is an apocalyptic number.

142409706 is an abundant number, since it is smaller than the sum of its proper divisors (146661558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142409706 is a wasteful number, since it uses less digits than its factorization.

142409706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354325.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 142409706 is about 11933.5537875354. The cubic root of 142409706 is about 522.2116183719.

The spelling of 142409706 in words is "one hundred forty-two million, four hundred nine thousand, seven hundred six".