129600002 has 12 divisors (see below), whose sum is σ = 226138950. Its totient is φ = 55542816.

The previous prime is 129600001. The next prime is 129600041. The reversal of 129600002 is 200006921.

It can be written as a sum of positive squares in only one way, i.e., 121242121 + 8357881 = 11011^2 + 2891^2 .

It is not an unprimeable number, because it can be changed into a prime (129600001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 661127 + ... + 661322.

Almost surely, 2^129600002 is an apocalyptic number.

129600002 is a deficient number, since it is larger than the sum of its proper divisors (96538948).

129600002 is a wasteful number, since it uses less digits than its factorization.

129600002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322465 (or 1322458 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 129600002 is about 11384.1996644472. The cubic root of 129600002 is about 506.0596017842.

Adding to 129600002 its reverse (200006921), we get a palindrome (329606923).

The spelling of 129600002 in words is "one hundred twenty-nine million, six hundred thousand, two".