128830122 has 32 divisors (see below), whose sum is σ = 296164800. Its totient is φ = 41462064.

The previous prime is 128830111. The next prime is 128830123. The reversal of 128830122 is 221038821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (128830123) 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, 39568 + ... + 42699.

It is an arithmetic number, because the mean of its divisors is an integer number (9255150).

Almost surely, 2^128830122 is an apocalyptic number.

128830122 is an abundant number, since it is smaller than the sum of its proper divisors (167334678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128830122 is a wasteful number, since it uses less digits than its factorization.

128830122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82307 (or 82301 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 128830122 is about 11350.3357659586. The cubic root of 128830122 is about 505.0555400797.

Adding to 128830122 its reverse (221038821), we get a palindrome (349868943).

The spelling of 128830122 in words is "one hundred twenty-eight million, eight hundred thirty thousand, one hundred twenty-two".