129849795 has 12 divisors (see below), whose sum is σ = 225073056. Its totient is φ = 69253200.

The previous prime is 129849773. The next prime is 129849823. The reversal of 129849795 is 597948921.

It is not a de Polignac number, because 129849795 - 2⁵ = 129849763 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 11 ways as a sum of consecutive naturals, for example, 1442731 + ... + 1442820.

It is an arithmetic number, because the mean of its divisors is an integer number (18756088).

Almost surely, 2^129849795 is an apocalyptic number.

129849795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

129849795 is a deficient number, since it is larger than the sum of its proper divisors (95223261).

129849795 is a wasteful number, since it uses less digits than its factorization.

129849795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885562 (or 2885559 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 129849795 is about 11395.1654222306. The cubic root of 129849795 is about 506.3845220931.

The spelling of 129849795 in words is "one hundred twenty-nine million, eight hundred forty-nine thousand, seven hundred ninety-five".