120099638 has 4 divisors (see below), whose sum is σ = 180149460. Its totient is φ = 60049818.

The previous prime is 120099631. The next prime is 120099647. The reversal of 120099638 is 836990021.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120099631) by changing a digit.

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 as a sum of consecutive naturals, namely, 30024908 + ... + 30024911.

It is an arithmetic number, because the mean of its divisors is an integer number (45037365).

Almost surely, 2^120099638 is an apocalyptic number.

120099638 is a deficient number, since it is larger than the sum of its proper divisors (60049822).

120099638 is an equidigital number, since it uses as much as digits as its factorization.

120099638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60049821.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 120099638 is about 10958.9980381420. The cubic root of 120099638 is about 493.3788928990.

The spelling of 120099638 in words is "one hundred twenty million, ninety-nine thousand, six hundred thirty-eight".