128319106 has 16 divisors (see below), whose sum is σ = 199600128. Its totient is φ = 61804800.

The previous prime is 128319067. The next prime is 128319119. The reversal of 128319106 is 601913821.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9186 + ... + 18466.

It is an arithmetic number, because the mean of its divisors is an integer number (12475008).

Almost surely, 2^128319106 is an apocalyptic number.

128319106 is a deficient number, since it is larger than the sum of its proper divisors (71281022).

128319106 is a wasteful number, since it uses less digits than its factorization.

128319106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9537.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 128319106 is about 11327.8023464395. The cubic root of 128319106 is about 504.3868727957.

The spelling of 128319106 in words is "one hundred twenty-eight million, three hundred nineteen thousand, one hundred six".