129284852 has 6 divisors (see below), whose sum is σ = 226248498. Its totient is φ = 64642424.

The previous prime is 129284833. The next prime is 129284893. The reversal of 129284852 is 258482921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 117202276 + 12082576 = 10826^2 + 3476^2 .

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 as a sum of consecutive naturals, namely, 16160603 + ... + 16160610.

It is an arithmetic number, because the mean of its divisors is an integer number (37708083).

Almost surely, 2^129284852 is an apocalyptic number.

It is an amenable number.

129284852 is a deficient number, since it is larger than the sum of its proper divisors (96963646).

129284852 is a wasteful number, since it uses less digits than its factorization.

129284852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32321217 (or 32321215 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 129284852 is about 11370.3496867950. The cubic root of 129284852 is about 505.6490716155.

The spelling of 129284852 in words is "one hundred twenty-nine million, two hundred eighty-four thousand, eight hundred fifty-two".