129646430 has 8 divisors (see below), whose sum is σ = 233363592. Its totient is φ = 51858568.

The previous prime is 129646421. The next prime is 129646459. The reversal of 129646430 is 34646921.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6482312 + ... + 6482331.

It is an arithmetic number, because the mean of its divisors is an integer number (29170449).

Almost surely, 2^129646430 is an apocalyptic number.

129646430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129646430 is a deficient number, since it is larger than the sum of its proper divisors (103717162).

129646430 is a wasteful number, since it uses less digits than its factorization.

129646430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12964650.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 129646430 is about 11386.2386238828. The cubic root of 129646430 is about 506.1200249574.

The spelling of 129646430 in words is "one hundred twenty-nine million, six hundred forty-six thousand, four hundred thirty".