129693330 has 48 divisors (see below), whose sum is σ = 363144600. Its totient is φ = 31924224.

The previous prime is 129693329. The next prime is 129693341. The reversal of 129693330 is 33396921.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 115154361 + 14538969 = 10731^2 + 3813^2 .

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 23 ways as a sum of consecutive naturals, for example, 54255 + ... + 56594.

Almost surely, 2^129693330 is an apocalyptic number.

129693330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129693330 is an abundant number, since it is smaller than the sum of its proper divisors (233451270).

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

129693330 is a wasteful number, since it uses less digits than its factorization.

129693330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110875 (or 110872 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

The square root of 129693330 is about 11388.2979413080. The cubic root of 129693330 is about 506.1810477649.

The spelling of 129693330 in words is "one hundred twenty-nine million, six hundred ninety-three thousand, three hundred thirty".