128162099 has 16 divisors (see below), whose sum is σ = 146583360. Its totient is φ = 111006720.

The previous prime is 128162071. The next prime is 128162143. The reversal of 128162099 is 990261821.

It is a cyclic number.

It is not a de Polignac number, because 128162099 - 2¹² = 128158003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128162039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96359 + ... + 97679.

It is an arithmetic number, because the mean of its divisors is an integer number (9161460).

Almost surely, 2^128162099 is an apocalyptic number.

128162099 is a deficient number, since it is larger than the sum of its proper divisors (18421261).

128162099 is a wasteful number, since it uses less digits than its factorization.

128162099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 128162099 is about 11320.8700637363. The cubic root of 128162099 is about 504.1810718224.

The spelling of 128162099 in words is "one hundred twenty-eight million, one hundred sixty-two thousand, ninety-nine".