808305129 has 32 divisors (see below), whose sum is σ = 1253145600. Its totient is φ = 514304640.

The previous prime is 808305097. The next prime is 808305131. The reversal of 808305129 is 921503808.

It is not a de Polignac number, because 808305129 - 2⁵ = 808305097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 808305093 and 808305102.

It is not an unprimeable number, because it can be changed into a prime (808305829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54487 + ... + 67715.

It is an arithmetic number, because the mean of its divisors is an integer number (39160800).

Almost surely, 2^808305129 is an apocalyptic number.

It is an amenable number.

808305129 is a deficient number, since it is larger than the sum of its proper divisors (444840471).

808305129 is a wasteful number, since it uses less digits than its factorization.

808305129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13342 (or 13336 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 808305129 is about 28430.7075008695. The cubic root of 808305129 is about 931.5191300938.

The spelling of 808305129 in words is "eight hundred eight million, three hundred five thousand, one hundred twenty-nine".