120728099 has 8 divisors (see below), whose sum is σ = 121870560. Its totient is φ = 119589696.

The previous prime is 120728093. The next prime is 120728107. The reversal of 120728099 is 990827021.

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

It is a cyclic number.

It is not a de Polignac number, because 120728099 - 2¹² = 120724003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120728093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113042 + ... + 114104.

It is an arithmetic number, because the mean of its divisors is an integer number (15233820).

Almost surely, 2^120728099 is an apocalyptic number.

120728099 is a deficient number, since it is larger than the sum of its proper divisors (1142461).

120728099 is a wasteful number, since it uses less digits than its factorization.

120728099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 120728099 is about 10987.6339127221. The cubic root of 120728099 is about 494.2379854480.

The spelling of 120728099 in words is "one hundred twenty million, seven hundred twenty-eight thousand, ninety-nine".