140350666 has 8 divisors (see below), whose sum is σ = 211365504. Its totient is φ = 69895500.

The previous prime is 140350643. The next prime is 140350687. The reversal of 140350666 is 666053041.

140350666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139290 + ... + 140293.

It is an arithmetic number, because the mean of its divisors is an integer number (26420688).

Almost surely, 2^140350666 is an apocalyptic number.

140350666 is a deficient number, since it is larger than the sum of its proper divisors (71014838).

140350666 is a wasteful number, since it uses less digits than its factorization.

140350666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279836.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 140350666 is about 11846.9686418088. The cubic root of 140350666 is about 519.6825799475.

The spelling of 140350666 in words is "one hundred forty million, three hundred fifty thousand, six hundred sixty-six".