128152812 has 24 divisors (see below), whose sum is σ = 299710656. Its totient is φ = 42619408.

The previous prime is 128152693. The next prime is 128152813. The reversal of 128152812 is 218251821.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 128152812.

It is not an unprimeable number, because it can be changed into a prime (128152813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6738 + ... + 17369.

It is an arithmetic number, because the mean of its divisors is an integer number (12487944).

Almost surely, 2^128152812 is an apocalyptic number.

128152812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128152812 is an abundant number, since it is smaller than the sum of its proper divisors (171557844).

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

128152812 is a wasteful number, since it uses less digits than its factorization.

128152812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24557 (or 24555 counting only the distinct ones).

The product of its digits is 2560, while the sum is 30.

The square root of 128152812 is about 11320.4598846513. The cubic root of 128152812 is about 504.1688933839.

Subtracting 128152812 from its reverse (218251821), we obtain a palindrome (90099009).

The spelling of 128152812 in words is "one hundred twenty-eight million, one hundred fifty-two thousand, eight hundred twelve".