129517633 has 12 divisors (see below), whose sum is σ = 152915952. Its totient is φ = 109355400.

The previous prime is 129517631. The next prime is 129517639. The reversal of 129517633 is 336715921.

It is not a de Polignac number, because 129517633 - 2¹ = 129517631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129517592 and 129517601.

It is not an unprimeable number, because it can be changed into a prime (129517631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16443 + ... + 23008.

It is an arithmetic number, because the mean of its divisors is an integer number (12742996).

Almost surely, 2^129517633 is an apocalyptic number.

It is an amenable number.

129517633 is a deficient number, since it is larger than the sum of its proper divisors (23398319).

129517633 is an equidigital number, since it uses as much as digits as its factorization.

129517633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39532 (or 39525 counting only the distinct ones).

The product of its digits is 34020, while the sum is 37.

The square root of 129517633 is about 11380.5813999110. The cubic root of 129517633 is about 505.9523680994.

The spelling of 129517633 in words is "one hundred twenty-nine million, five hundred seventeen thousand, six hundred thirty-three".