129325228 has 12 divisors (see below), whose sum is σ = 236159280. Its totient is φ = 61851152.

The previous prime is 129325213. The next prime is 129325237. The reversal of 129325228 is 822523921.

It is a junction number, because it is equal to n+sod(n) for n = 129325193 and 129325202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702763 + ... + 702946.

It is an arithmetic number, because the mean of its divisors is an integer number (19679940).

Almost surely, 2^129325228 is an apocalyptic number.

It is an amenable number.

129325228 is a deficient number, since it is larger than the sum of its proper divisors (106834052).

129325228 is a wasteful number, since it uses less digits than its factorization.

129325228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405736 (or 1405734 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 129325228 is about 11372.1250432802. The cubic root of 129325228 is about 505.7017046492.

The spelling of 129325228 in words is "one hundred twenty-nine million, three hundred twenty-five thousand, two hundred twenty-eight".