128130106 has 8 divisors (see below), whose sum is σ = 206979444. Its totient is φ = 59136960.

The previous prime is 128130089. The next prime is 128130137. The reversal of 128130106 is 601031821.

It can be written as a sum of positive squares in 2 ways, for example, as 126900225 + 1229881 = 11265^2 + 1109^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2464015 + ... + 2464066.

Almost surely, 2^128130106 is an apocalyptic number.

128130106 is a deficient number, since it is larger than the sum of its proper divisors (78849338).

128130106 is a wasteful number, since it uses less digits than its factorization.

128130106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928096.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 128130106 is about 11319.4569657736. The cubic root of 128130106 is about 504.1391155614.

Adding to 128130106 its reverse (601031821), we get a palindrome (729161927).

The spelling of 128130106 in words is "one hundred twenty-eight million, one hundred thirty thousand, one hundred six".