129002 has 8 divisors (see below), whose sum is σ = 197316. Its totient is φ = 63232.
The previous prime is 129001. The next prime is 129011. The reversal of 129002 is 200921.
It can be written as a sum of positive squares in 2 ways, for example, as 128881 + 121 = 359^2 + 11^2 .
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 (129001) by changing a digit.
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, 503 + ... + 714.
2129002 is an apocalyptic number.
129002 is a deficient number, since it is larger than the sum of its proper divisors (68314).
129002 is a wasteful number, since it uses less digits than its factorization.
129002 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1272.
The product of its (nonzero) digits is 36, while the sum is 14.
The square root of 129002 is about 359.1684841408. The cubic root of 129002 is about 50.5280045960.
Adding to 129002 its reverse (200921), we get a palindrome (329923).
The spelling of 129002 in words is "one hundred twenty-nine thousand, two".
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