129864795 has 24 divisors (see below), whose sum is σ = 210336816. Its totient is φ = 68420352.

The previous prime is 129864767. The next prime is 129864811. The reversal of 129864795 is 597468921.

It is not a de Polignac number, because 129864795 - 2⁶ = 129864731 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118269 + ... + 119361.

It is an arithmetic number, because the mean of its divisors is an integer number (8764034).

Almost surely, 2^129864795 is an apocalyptic number.

129864795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

129864795 is a deficient number, since it is larger than the sum of its proper divisors (80472021).

129864795 is an equidigital number, since it uses as much as digits as its factorization.

129864795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279 (or 1190 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The square root of 129864795 is about 11395.8235770830. The cubic root of 129864795 is about 506.4040201995.

The spelling of 129864795 in words is "one hundred twenty-nine million, eight hundred sixty-four thousand, seven hundred ninety-five".