129285362 has 8 divisors (see below), whose sum is σ = 194055600. Its totient is φ = 64600164.

The previous prime is 129285361. The next prime is 129285379. The reversal of 129285362 is 263582921.

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

It is not an unprimeable number, because it can be changed into a prime (129285361) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17312 + ... + 23627.

It is an arithmetic number, because the mean of its divisors is an integer number (24256950).

Almost surely, 2^129285362 is an apocalyptic number.

129285362 is a deficient number, since it is larger than the sum of its proper divisors (64770238).

129285362 is a wasteful number, since it uses less digits than its factorization.

129285362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42520.

The product of its digits is 51840, while the sum is 38.

The square root of 129285362 is about 11370.3721135238. The cubic root of 129285362 is about 505.6497365056.

The spelling of 129285362 in words is "one hundred twenty-nine million, two hundred eighty-five thousand, three hundred sixty-two".