129889014 has 32 divisors (see below), whose sum is σ = 266453376. Its totient is φ = 42197760.

The previous prime is 129889013. The next prime is 129889021. The reversal of 129889014 is 410988921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129889013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37329 + ... + 40659.

It is an arithmetic number, because the mean of its divisors is an integer number (8326668).

Almost surely, 2^129889014 is an apocalyptic number.

129889014 is an abundant number, since it is smaller than the sum of its proper divisors (136564362).

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

129889014 is a wasteful number, since it uses less digits than its factorization.

129889014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 129889014 is about 11396.8861536825. The cubic root of 129889014 is about 506.4354986732.

The spelling of 129889014 in words is "one hundred twenty-nine million, eight hundred eighty-nine thousand, fourteen".