140223166 has 4 divisors (see below), whose sum is σ = 210334752. Its totient is φ = 70111582.

The previous prime is 140223151. The next prime is 140223227. The reversal of 140223166 is 661322041.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 140223166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35055790 + ... + 35055793.

It is an arithmetic number, because the mean of its divisors is an integer number (52583688).

Almost surely, 2^140223166 is an apocalyptic number.

140223166 is a deficient number, since it is larger than the sum of its proper divisors (70111586).

140223166 is an equidigital number, since it uses as much as digits as its factorization.

140223166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70111585.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 140223166 is about 11841.5862957629. The cubic root of 140223166 is about 519.5251656528.

The spelling of 140223166 in words is "one hundred forty million, two hundred twenty-three thousand, one hundred sixty-six".