129061630 has 16 divisors (see below), whose sum is σ = 232533504. Its totient is φ = 51575200.

The previous prime is 129061613. The next prime is 129061679. The reversal of 129061630 is 36160921.

It is a congruent number.

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, 5904 + ... + 17116.

It is an arithmetic number, because the mean of its divisors is an integer number (14533344).

Almost surely, 2^129061630 is an apocalyptic number.

129061630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129061630 is a deficient number, since it is larger than the sum of its proper divisors (103471874).

129061630 is a wasteful number, since it uses less digits than its factorization.

129061630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12371.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 129061630 is about 11360.5294770974. The cubic root of 129061630 is about 505.3578876679.

The spelling of 129061630 in words is "one hundred twenty-nine million, sixty-one thousand, six hundred thirty".