129473078 has 32 divisors (see below), whose sum is σ = 227748864. Its totient is φ = 54058752.

The previous prime is 129473051. The next prime is 129473089. The reversal of 129473078 is 870374921.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 90275 + ... + 91697.

It is an arithmetic number, because the mean of its divisors is an integer number (7117152).

Almost surely, 2^129473078 is an apocalyptic number.

129473078 is a deficient number, since it is larger than the sum of its proper divisors (98275786).

129473078 is a wasteful number, since it uses less digits than its factorization.

129473078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 129473078 is about 11378.6237304869. The cubic root of 129473078 is about 505.8943443573.

The spelling of 129473078 in words is "one hundred twenty-nine million, four hundred seventy-three thousand, seventy-eight".