129223596 has 24 divisors (see below), whose sum is σ = 319258800. Its totient is φ = 40540672.

The previous prime is 129223583. The next prime is 129223597. The reversal of 129223596 is 695322921.

It is not an unprimeable number, because it can be changed into a prime (129223597) 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 7 ways as a sum of consecutive naturals, for example, 316521 + ... + 316928.

It is an arithmetic number, because the mean of its divisors is an integer number (13302450).

Almost surely, 2^129223596 is an apocalyptic number.

It is an amenable number.

129223596 is an abundant number, since it is smaller than the sum of its proper divisors (190035204).

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

129223596 is a wasteful number, since it uses less digits than its factorization.

129223596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633473 (or 633471 counting only the distinct ones).

The product of its digits is 58320, while the sum is 39.

The square root of 129223596 is about 11367.6556949971. The cubic root of 129223596 is about 505.5691990647.

The spelling of 129223596 in words is "one hundred twenty-nine million, two hundred twenty-three thousand, five hundred ninety-six".