129760770 has 16 divisors (see below), whose sum is σ = 311425920. Its totient is φ = 34602864.

The previous prime is 129760753. The next prime is 129760831. The reversal of 129760770 is 77067921.

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 7 ways as a sum of consecutive naturals, for example, 2162650 + ... + 2162709.

It is an arithmetic number, because the mean of its divisors is an integer number (19464120).

Almost surely, 2^129760770 is an apocalyptic number.

129760770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129760770 is an abundant number, since it is smaller than the sum of its proper divisors (181665150).

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

129760770 is a wasteful number, since it uses less digits than its factorization.

129760770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325369.

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 129760770 is about 11391.2584906146. The cubic root of 129760770 is about 506.2687699183.

The spelling of 129760770 in words is "one hundred twenty-nine million, seven hundred sixty thousand, seven hundred seventy".