129334068 has 18 divisors (see below), whose sum is σ = 326927874. Its totient is φ = 43111344.

The previous prime is 129334063. The next prime is 129334081. The reversal of 129334068 is 860433921.

It can be written as a sum of positive squares in only one way, i.e., 121616784 + 7717284 = 11028^2 + 2778^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×129334068² = 33454602290857248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3592613 = 129334068 / (1 + 2 + 9 + 3 + 3 + 4 + 0 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129334061) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1796271 + ... + 1796342.

Almost surely, 2^129334068 is an apocalyptic number.

129334068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

129334068 is an abundant number, since it is smaller than the sum of its proper divisors (197593806).

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

129334068 is a wasteful number, since it uses less digits than its factorization.

129334068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592623 (or 3592618 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 129334068 is about 11372.5137063008. The cubic root of 129334068 is about 505.7132267662.

Adding to 129334068 its reverse (860433921), we get a palindrome (989767989).

The spelling of 129334068 in words is "one hundred twenty-nine million, three hundred thirty-four thousand, sixty-eight".