129328283 has 16 divisors (see below), whose sum is σ = 152424384. Its totient is φ = 107412480.

The previous prime is 129328273. The next prime is 129328327. The reversal of 129328283 is 382823921.

It is not a de Polignac number, because 129328283 - 2¹⁸ = 129066139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129328273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71891 + ... + 73667.

It is an arithmetic number, because the mean of its divisors is an integer number (9526524).

Almost surely, 2^129328283 is an apocalyptic number.

129328283 is a deficient number, since it is larger than the sum of its proper divisors (23096101).

129328283 is a wasteful number, since it uses less digits than its factorization.

129328283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102.

The product of its digits is 41472, while the sum is 38.

The square root of 129328283 is about 11372.2593621496. The cubic root of 129328283 is about 505.7056866167.

The spelling of 129328283 in words is "one hundred twenty-nine million, three hundred twenty-eight thousand, two hundred eighty-three".