120166394 has 4 divisors (see below), whose sum is σ = 180249594. Its totient is φ = 60083196.

The previous prime is 120166391. The next prime is 120166411. The reversal of 120166394 is 493661021.

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

It can be written as a sum of positive squares in only one way, i.e., 95316169 + 24850225 = 9763^2 + 4985^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120166394.

It is not an unprimeable number, because it can be changed into a prime (120166391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30041597 + ... + 30041600.

Almost surely, 2^120166394 is an apocalyptic number.

120166394 is a deficient number, since it is larger than the sum of its proper divisors (60083200).

120166394 is an equidigital number, since it uses as much as digits as its factorization.

120166394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60083199.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 120166394 is about 10962.0433314232. The cubic root of 120166394 is about 493.4702889582.

The spelling of 120166394 in words is "one hundred twenty million, one hundred sixty-six thousand, three hundred ninety-four".