129480930 has 40 divisors (see below), whose sum is σ = 348162012. Its totient is φ = 34528032.

The previous prime is 129480919. The next prime is 129480931. The reversal of 129480930 is 39084921.

It can be written as a sum of positive squares in 2 ways, for example, as 117223929 + 12257001 = 10827^2 + 3501^2 .

It is a super-2 number, since 2×129480930² = 33530622467329800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129480931) 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 19 ways as a sum of consecutive naturals, for example, 79117 + ... + 80736.

Almost surely, 2^129480930 is an apocalyptic number.

129480930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129480930 is an abundant number, since it is smaller than the sum of its proper divisors (218681082).

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

129480930 is a wasteful number, since it uses less digits than its factorization.

129480930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159872 (or 159863 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 129480930 is about 11378.9687581960. The cubic root of 129480930 is about 505.9045709417.

The spelling of 129480930 in words is "one hundred twenty-nine million, four hundred eighty thousand, nine hundred thirty".