129354084 has 30 divisors (see below), whose sum is σ = 338157974. Its totient is φ = 43117920.

The previous prime is 129354083. The next prime is 129354091. The reversal of 129354084 is 480453921.

It can be written as a sum of positive squares in only one way, i.e., 128187684 + 1166400 = 11322^2 + 1080^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (129354083) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 199297 + ... + 199944.

Almost surely, 2^129354084 is an apocalyptic number.

It is an amenable number.

129354084 is an abundant number, since it is smaller than the sum of its proper divisors (208803890).

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

129354084 is a wasteful number, since it uses less digits than its factorization.

129354084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399257 (or 399246 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 129354084 is about 11373.3936887808. The cubic root of 129354084 is about 505.7393138186.

The spelling of 129354084 in words is "one hundred twenty-nine million, three hundred fifty-four thousand, eighty-four".