129984022 has 16 divisors (see below), whose sum is σ = 228265632. Its totient is φ = 54348480.

The previous prime is 129983963. The next prime is 129984047. The reversal of 129984022 is 220489921.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 112653 + ... + 113800.

It is an arithmetic number, because the mean of its divisors is an integer number (14266602).

Almost surely, 2^129984022 is an apocalyptic number.

129984022 is a deficient number, since it is larger than the sum of its proper divisors (98281610).

129984022 is a wasteful number, since it uses less digits than its factorization.

129984022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226503.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 129984022 is about 11401.0535478086. The cubic root of 129984022 is about 506.5589468790.

It can be divided in two parts, 12998 and 4022, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 129984022 in words is "one hundred twenty-nine million, nine hundred eighty-four thousand, twenty-two".