129382074 has 24 divisors (see below), whose sum is σ = 280705152. Its totient is φ = 43069320.

The previous prime is 129382069. The next prime is 129382091. The reversal of 129382074 is 470283921.

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 11 ways as a sum of consecutive naturals, for example, 10167 + ... + 19029.

It is an arithmetic number, because the mean of its divisors is an integer number (11696048).

Almost surely, 2^129382074 is an apocalyptic number.

129382074 is an abundant number, since it is smaller than the sum of its proper divisors (151323078).

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

129382074 is a wasteful number, since it uses less digits than its factorization.

129382074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9682 (or 9679 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 129382074 is about 11374.6241256580. The cubic root of 129382074 is about 505.7757889522.

The spelling of 129382074 in words is "one hundred twenty-nine million, three hundred eighty-two thousand, seventy-four".