129024042 has 16 divisors (see below), whose sum is σ = 294912192. Its totient is φ = 36864000.

The previous prime is 129024031. The next prime is 129024047. The reversal of 129024042 is 240420921.

It is not an unprimeable number, because it can be changed into a prime (129024047) 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 in 7 ways as a sum of consecutive naturals, for example, 1535959 + ... + 1536042.

It is an arithmetic number, because the mean of its divisors is an integer number (18432012).

Almost surely, 2^129024042 is an apocalyptic number.

129024042 is an abundant number, since it is smaller than the sum of its proper divisors (165888150).

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

129024042 is a wasteful number, since it uses less digits than its factorization.

129024042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072013.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 129024042 is about 11358.8750323260. The cubic root of 129024042 is about 505.3088226420.

Adding to 129024042 its reverse (240420921), we get a palindrome (369444963).

The spelling of 129024042 in words is "one hundred twenty-nine million, twenty-four thousand, forty-two".