129163092 has 12 divisors (see below), whose sum is σ = 301380576. Its totient is φ = 43054360.

The previous prime is 129163091. The next prime is 129163117. The reversal of 129163092 is 290361921.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129163091) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5381784 + ... + 5381807.

It is an arithmetic number, because the mean of its divisors is an integer number (25115048).

Almost surely, 2^129163092 is an apocalyptic number.

129163092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129163092 is an abundant number, since it is smaller than the sum of its proper divisors (172217484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129163092 is a wasteful number, since it uses less digits than its factorization.

129163092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10763598 (or 10763596 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 129163092 is about 11364.9941487006. The cubic root of 129163092 is about 505.4902822749.

The spelling of 129163092 in words is "one hundred twenty-nine million, one hundred sixty-three thousand, ninety-two".