129565014 has 8 divisors (see below), whose sum is σ = 259130040. Its totient is φ = 43188336.

The previous prime is 129565013. The next prime is 129565021. The reversal of 129565014 is 410565921.

It is a sphenic number, since it is the product of 3 distinct primes.

129565014 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129565013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10797079 + ... + 10797090.

It is an arithmetic number, because the mean of its divisors is an integer number (32391255).

Almost surely, 2^129565014 is an apocalyptic number.

129565014 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

129565014 is a wasteful number, since it uses less digits than its factorization.

129565014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21594174.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 129565014 is about 11382.6628694695. The cubic root of 129565014 is about 506.0140575284.

The spelling of 129565014 in words is "one hundred twenty-nine million, five hundred sixty-five thousand, fourteen".