129014528 has 18 divisors (see below), whose sum is σ = 257525604. Its totient is φ = 64507136.

The previous prime is 129014527. The next prime is 129014549. The reversal of 129014528 is 825410921.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 129014494 and 129014503.

It is not an unprimeable number, because it can be changed into a prime (129014527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251726 + ... + 252237.

It is an arithmetic number, because the mean of its divisors is an integer number (14306978).

Almost surely, 2^129014528 is an apocalyptic number.

It is an amenable number.

129014528 is a deficient number, since it is larger than the sum of its proper divisors (128511076).

129014528 is an frugal number, since it uses more digits than its factorization.

129014528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503979 (or 503965 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 129014528 is about 11358.4562331331. The cubic root of 129014528 is about 505.2964021498.

The spelling of 129014528 in words is "one hundred twenty-nine million, fourteen thousand, five hundred twenty-eight".