129288030 has 32 divisors (see below), whose sum is σ = 310755744. Its totient is φ = 34425216.

The previous prime is 129287999. The next prime is 129288079. The reversal of 129288030 is 30882921.

It is a junction number, because it is equal to n+sod(n) for n = 129287982 and 129288000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19864 + ... + 25556.

It is an arithmetic number, because the mean of its divisors is an integer number (9711117).

Almost surely, 2^129288030 is an apocalyptic number.

129288030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129288030 is an abundant number, since it is smaller than the sum of its proper divisors (181467714).

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

129288030 is a wasteful number, since it uses less digits than its factorization.

129288030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6460.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 129288030 is about 11370.4894353761. The cubic root of 129288030 is about 505.6532147654.

It can be divided in two parts, 1 and 29288030, that added together give a triangular number (29288031 = T₇₆₅₃).

The spelling of 129288030 in words is "one hundred twenty-nine million, two hundred eighty-eight thousand, thirty".