129403146 has 8 divisors (see below), whose sum is σ = 258806304. Its totient is φ = 43134380.

The previous prime is 129403139. The next prime is 129403163. The reversal of 129403146 is 641304921.

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

129403146 is an admirable number.

It is a super-3 number, since 3×129403146³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10783590 + ... + 10783601.

It is an arithmetic number, because the mean of its divisors is an integer number (32350788).

Almost surely, 2^129403146 is an apocalyptic number.

129403146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

129403146 is a wasteful number, since it uses less digits than its factorization.

129403146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21567196.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 129403146 is about 11375.5503603122. The cubic root of 129403146 is about 505.8032454320.

The spelling of 129403146 in words is "one hundred twenty-nine million, four hundred three thousand, one hundred forty-six".