129303074 has 8 divisors (see below), whose sum is σ = 194048028. Its totient is φ = 64620400.

The previous prime is 129303073. The next prime is 129303089. The reversal of 129303074 is 470303921.

It can be written as a sum of positive squares in 2 ways, for example, as 94575625 + 34727449 = 9725^2 + 5893^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (129303073) 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 3 ways as a sum of consecutive naturals, for example, 9977 + ... + 18924.

Almost surely, 2^129303074 is an apocalyptic number.

129303074 is a deficient number, since it is larger than the sum of its proper divisors (64744954).

129303074 is a wasteful number, since it uses less digits than its factorization.

129303074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31140.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 129303074 is about 11371.1509531797. The cubic root of 129303074 is about 505.6728266659.

Adding to 129303074 its reverse (470303921), we get a palindrome (599606995).

The spelling of 129303074 in words is "one hundred twenty-nine million, three hundred three thousand, seventy-four".