129804933 has 4 divisors (see below), whose sum is σ = 173073248. Its totient is φ = 86536620.

The previous prime is 129804923. The next prime is 129804947. The reversal of 129804933 is 339408921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 129804933 - 2⁸ = 129804677 is a prime.

It is a super-2 number, since 2×129804933² = 33698641262268978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129804891 and 129804900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129804923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21634153 + ... + 21634158.

It is an arithmetic number, because the mean of its divisors is an integer number (43268312).

Almost surely, 2^129804933 is an apocalyptic number.

It is an amenable number.

129804933 is a deficient number, since it is larger than the sum of its proper divisors (43268315).

129804933 is an equidigital number, since it uses as much as digits as its factorization.

129804933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43268314.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 129804933 is about 11393.1967858016. The cubic root of 129804933 is about 506.3261981936.

The spelling of 129804933 in words is "one hundred twenty-nine million, eight hundred four thousand, nine hundred thirty-three".