128133164 has 12 divisors (see below), whose sum is σ = 225719088. Its totient is φ = 63642000.

The previous prime is 128133151. The next prime is 128133167. The reversal of 128133164 is 461331821.

It is not an unprimeable number, because it can be changed into a prime (128133167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105467 + ... + 106674.

It is an arithmetic number, because the mean of its divisors is an integer number (18809924).

Almost surely, 2^128133164 is an apocalyptic number.

It is an amenable number.

128133164 is a deficient number, since it is larger than the sum of its proper divisors (97585924).

128133164 is a wasteful number, since it uses less digits than its factorization.

128133164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212296 (or 212294 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 128133164 is about 11319.5920421188. The cubic root of 128133164 is about 504.1431261857.

Adding to 128133164 its reverse (461331821), we get a palindrome (589464985).

The spelling of 128133164 in words is "one hundred twenty-eight million, one hundred thirty-three thousand, one hundred sixty-four".