129922388 has 12 divisors (see below), whose sum is σ = 227447220. Its totient is φ = 64937472.

The previous prime is 129922379. The next prime is 129922391. The reversal of 129922388 is 883229921.

It can be written as a sum of positive squares in 2 ways, for example, as 127193284 + 2729104 = 11278^2 + 1652^2 .

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 3 ways as a sum of consecutive naturals, for example, 13370 + ... + 20942.

It is an arithmetic number, because the mean of its divisors is an integer number (18953935).

Almost surely, 2^129922388 is an apocalyptic number.

It is an amenable number.

129922388 is a deficient number, since it is larger than the sum of its proper divisors (97524832).

129922388 is a wasteful number, since it uses less digits than its factorization.

129922388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11866 (or 11864 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 129922388 is about 11398.3502315028. The cubic root of 129922388 is about 506.4788698828.

The spelling of 129922388 in words is "one hundred twenty-nine million, nine hundred twenty-two thousand, three hundred eighty-eight".