142499966 has 16 divisors (see below), whose sum is σ = 246153600. Its totient is φ = 60604440.

The previous prime is 142499957. The next prime is 142499977. The reversal of 142499966 is 669994241.

142499966 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37016 + ... + 40683.

It is an arithmetic number, because the mean of its divisors is an integer number (15384600).

Almost surely, 2^142499966 is an apocalyptic number.

142499966 is a deficient number, since it is larger than the sum of its proper divisors (103653634).

142499966 is a wasteful number, since it uses less digits than its factorization.

142499966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77839.

The product of its digits is 839808, while the sum is 50.

The square root of 142499966 is about 11937.3349622099. The cubic root of 142499966 is about 522.3219218698.

The spelling of 142499966 in words is "one hundred forty-two million, four hundred ninety-nine thousand, nine hundred sixty-six".