129022092 has 36 divisors (see below), whose sum is σ = 334808040. Its totient is φ = 42968016.

The previous prime is 129022067. The next prime is 129022109. The reversal of 129022092 is 290220921.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117498 + ... + 118590.

Almost surely, 2^129022092 is an apocalyptic number.

129022092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129022092 is an abundant number, since it is smaller than the sum of its proper divisors (205785948).

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

129022092 is an equidigital number, since it uses as much as digits as its factorization.

129022092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 129022092 is about 11358.7891960367. The cubic root of 129022092 is about 505.3062769739.

Multiplying 129022092 by its sum of digits (27), we get a square (3483596484 = 59022²).

129022092 divided by its sum of digits (27) gives a square (4778596 = 2186²).

The spelling of 129022092 in words is "one hundred twenty-nine million, twenty-two thousand, ninety-two".