129927042 has 48 divisors (see below), whose sum is σ = 322358400. Its totient is φ = 37048896.

The previous prime is 129927001. The next prime is 129927059. The reversal of 129927042 is 240729921.

It is a junction number, because it is equal to n+sod(n) for n = 129926988 and 129927006.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123334 + ... + 124382.

It is an arithmetic number, because the mean of its divisors is an integer number (6715800).

Almost surely, 2^129927042 is an apocalyptic number.

129927042 is an abundant number, since it is smaller than the sum of its proper divisors (192431358).

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

129927042 is a wasteful number, since it uses less digits than its factorization.

129927042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 129927042 is about 11398.5543820258. The cubic root of 129927042 is about 506.4849174023.

The spelling of 129927042 in words is "one hundred twenty-nine million, nine hundred twenty-seven thousand, forty-two".