129833265 has 32 divisors (see below), whose sum is σ = 214897536. Its totient is φ = 66890240.

The previous prime is 129833237. The next prime is 129833287. The reversal of 129833265 is 562338921.

It is not a de Polignac number, because 129833265 - 2²³ = 121444657 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64819 + ... + 66791.

It is an arithmetic number, because the mean of its divisors is an integer number (6715548).

Almost surely, 2^129833265 is an apocalyptic number.

129833265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129833265 is a deficient number, since it is larger than the sum of its proper divisors (85064271).

129833265 is a wasteful number, since it uses less digits than its factorization.

129833265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129.

The product of its digits is 77760, while the sum is 39.

The square root of 129833265 is about 11394.4400915534. The cubic root of 129833265 is about 506.3630334406.

The spelling of 129833265 in words is "one hundred twenty-nine million, eight hundred thirty-three thousand, two hundred sixty-five".